added an option to only get the latest version of all vendors to vendors.sh
added an option to only get the latest version of all vendors to vendors.sh

elcodi/symfonycon-demo,rajkamalganeshvivid/symfony-standard,srosato/kata-bowling,javiereguiluz/symfony-standard,mukulu/hris,taylankasap/symfony-standard,amalv/cupon,spolischook/standard-edition,glavweb/symfony-standard,JMSBot/CSBill,havvg/symfony-propel-edition,jmather/pagoda-symfony-sonata-distribution,shamcode/symfony-testing,Clastic/StandardEdition,skafandri/blog,rdohms/php-ug-directory,webignition/worker.simplytestable.com,azat/blog,RuntyCybin/symfony-standard,krmcbride/symfony-standard,fernanDOTdo/reurbano,Cartesia/01,hrisproject/hris,Musak/firstsymfony2project,reidel/hobby-1,javiereguiluz/symfony-standard,fahadonline/sulu,tdd-php/angaze,ewgRa/symfony-standard,skafandri/blog,damedia/culture.ru,uttam-vi/pardawala,rubensayshi/gogreat-self,srosato/kata-bowling,trsteel88/symfony-standard,jmather/pagoda-symfony-sonata-distribution,phiamo/symfony-bootstrap,aerrasti/iemedebe,adrienbrault/symfony-silex-edition,yelmontaser/symfony-standard,tristanbes/symfony-standard,UxorialRook/symfony-standard,NoUseFreak/StandardEdition,ericclemmons/ericclemmons.github.io,hrisproject/hris,mikekamornikov/remmart.ru,fernanDOTdo/reurbano,chregu/symfony-standard,flyboarder/AirOS_pre2.0,xiaobudongzhang/symfony-standard,yohang/non-obstrusive-form-sf2,beyondkeysystem/psc-symfony-angularjs,chebetos/SymfonyTest,zeopix/Templating-Workshop,rommsen/plesynd,webignition/simplytestable.com,yelmontaser/symfony-standard,bamarni/symfony-docker,foopro/symfony-screenfony,mbence/csaladsegito,oustaban/eurotax,sebhoerl/CustomRouterExample,Thiktak/Jordo,buddhika-jay/symfony-sonata-distribution,apnet/symfony-standard-edition,ovelasquez/ussi,kmelia/fresh-symfony,flyboarder/AirOS_pre2.0,tdd-php/angaze,pjcdawkins/tmp-symfony-demo,debruyne0/symfony,dziamid/lunch-time-composer,GulDmitry/music-diff,weaverryan/symfony-standard,ericclemmons/ericclemmons.github.io,buddhikajay/symfony-sonata-distribution,drufony/drufony,continuousphp/symfony-skeleton,orodsem/trout,martinmike2/website-study,Clastic/StandardEdition,VolCh/test-rethis.ru,tarasinio/weather-remainder.com,AlexeyKupershtokh/symfony-standard,blogsh/SymfonyAuthenticationTest,webignition/simplytestable.com,InkApplications/barenaked-symfony,pocit/ExpoApiBundle,Musak/firstsymfony2project,taylankasap/symfony-standard,Baachi/symfony-standard,tederkkila/snapshot_server,by-examples/symfony-standard,nresni/training,zeopix/Gaming,propelorm/symfony-propel-edition,webignition/app.simplytestable.com,liip-forks/symfony-standard,csarrazi/AppKernelGenerator,the-software-factory/superhero-api,xiaobudongzhang/symfony-standard,amalv/cupon,locastic/psc-symfony-angularjs,apnet/symfony-standard-edition,0mars/symfony-standard-issue-13291,rubensayshi/gogreat-self,chebetos/SymfonyTest,foopro/symfony-screenfony,theodo/theodo-kata,bionic-university/alexander-pobereznichenko,isidromerayo/symfony2-jobeet,Tobion/symfony-standard,lbotsch/symfony-standard,Cartesia/01,fabpot/symfony-standard,damienalexandre/symfony-standard,mattvaadi/hris,oustaban/eurotax,azat/blog,shcloudservices/agiletourreg,xdissent/sonata-sandbox,Chill-project/Standard,lukaszgi/operowo,orodsem/trout,platformsh/platformsh-example-symfony,ewgRa/symfony-standard,marcoleong/musictube,phiamo/symfony-bootstrap,meonkeys/symfony2-dual-auth,black-project/black-standard,jbdelhommeau/symfony-standard,damedia/culture.ru,lyrixx/symfony-standard,rommsen/plesynd,tiagobrito/ds1.sfdaypt14,GulDmitry/music-diff,arnaud-lb/sfbootstrap,shadowtje1990/symfony_todo_api,continuousphp/symfony-skeleton,damedia/culture.ru,meonkeys/symfony2-dual-auth,lyrixx/symfony-standard,lyrixx/symfony-rest-edition,simonjcarr/symfony_rest,sebhoerl/Symfony-Security-Customization,dkarvounaris/symfony-standard,comfortablynumb/shopeet,liip-forks/symfony-standard,LogTweets/logtweets,we-bridge/symfony-admin,symfony-cmf/standard-edition,phiamo/symfony-bootstrap,kertz/flock,glavweb/symfony-standard,unewochialat/symfony-standard,fernanDOTdo/reurbano,jakzal/symfony-standard,outlandishideas/symfony-standard,joferzs/firewall,lukaszgi/operowo,beberlei/symfony-standard,cordoval/symfony-bootstrap,trycatch-au/Informative-Workspaces,gnugat/symfony-empty,meonkeys/symfony2-talk,jbdelhommeau/symfony-standard,black-project/black-standard,shcloudservices/agiletourreg,AlexeyKupershtokh/symfony-standard,HasClass0/standard-edition,kucherevskyA/kucherevskiy-test-task,trycatch-au/Informative-Workspaces,singingstars/flydb,lmaslowski/sf2,1ed/symfony-standard,kmelia/fresh-symfony,Thiktak/Jordo,cedriclombardot/GitWeb,WolfMicrosystems/symfony-wms,kmelia/fresh-symfony,SymfonyId/Skeleton,blogsh/Symfony-Security-Customization,comfortablynumb/shopeet,jakzal/symfony-standard,stof/symfony-standard,weaverryan/symfony-standard,dziamid/lunch-time-composer,unewochialat/symfony-standard,zanderbaldwin/symfony-layers,alihalabyah/symfony-rest-edition,rdohms/PHPSP-Promos,mattvaadi/hris,gbtekkie/just-in-time,Spea/symfony-standard,tomat/symfony-standard,Ocramius/symfony-standard,micha149/wedding-page,HumanBooster/Symfony,kertz/flock,ucay/Skeleton,theodo/theodo-kata,egeloen/symfony-standard,merk/symfony-test,b00giZm/symfony-boilerplate-app,merk/Citadel,proteichik/testApp,Rvanlaak/symfony-standard,tdd-php/angaze,peterkokot/symfony-standard,flyboarder/AirOS,cedriclombardot/GitWeb,tdd-php/literatura,majisti/symfony-standard,symfony-cmf/standard-edition,joferzs/firewall,zeopix/Templating-Workshop,mweimerskirch/symfony-standard,cordoval/phpspec-symfony-sandbox,lsmith77/symfony-standard,zeopix/Eventos,cordoval/demo-symfony2-argentina,lanthaler/sfHydraDemoApp,rdohms/php-ug-directory,micha149/wedding-page,chrisciampoli/cleats,bamarni/symfony-docker,continuousphp/symfony-skeleton,freecastle/Symfony2_Boilerplate,cordoval/symfony-gae,aprezcuba24/symfony-standard,gencer/symfony-standard,azat/blog,stof/symfony-standard,wachterjohannes/sulu-standard,VolCh/test-rethis.ru,damedia/culture.ru,dunglas/symfony-standard,b00giZm/symfony-boilerplate-app,webignition/simplytestable.com,webmozart/symfony-standard,OskarStark/symfony-standard,hhamon/symfony-standard,spolischook/standard-edition,WouterJ/symfony-standard,shamcode/symfony-testing,fcerezo/famaluz,myroshnychenko/SymfonyCMF,umpirsky/symfony-standard,mykehsd/jobeet,fduch/symfony-standard-workflow,irro/MastoAlliance,mbence/csaladsegito,flyboarder/AirOS_pre2.0,rubensayshi/gogreat-self,havvg/symfony-propel-edition,mattvaadi/hris,tarasinio/weather-remainder.com,fcerezo/famaluz,continuousphp/symfony-skeleton,Metabor/Start-App,Clastic/StandardEdition,JMSBot/CSBill,egeloen/symfony-standard,yhoiseth/notelite.net,vincentaubert/symfony-standard,hrisproject/hris,fahadonline/sulu,havvg/symfony-standard-propel,marcoleong/MacauSE,havvg/symfony-standard-propel,den2134/itdTest,fabpot/symfony-standard,den2134/itdTest,mqmtech/shop-app,VolCh/test-rethis.ru,achrafYne/restaurants-guide,checat/symfony-minimal,markitosgv/DevOps,comfortablynumb/shopeet,flyboarder/AirOS,LogTweets/logtweets,bocharsky-bw/symfony-standard,buddhika-jay/symfony-sonata-distribution,RuntyCybin/symfony-standard,proteichik/testApp,chebetos/SymfonyTest,mqmtech/show-app,phiamo/symfony-bootstrap,sulu-io/sulu-standard,FLM/uberstrap,fahadonline/sulu,Baachi/symfony-standard,cordoval/symfony-gae,webignition/worker.simplytestable.com,buddhikajay/symfony-sonata-distribution,como/symfony-commerce,nresni/training,mattvaadi/hris,makasim/LiipImagineBundleSandbox,marcoleong/musictube,fcerezo/famaluz,yhoiseth/notelite.net,trycatch-au/Informative-Workspaces,debruyne0/symfony,bocharsky-bw/symfony-standard,flyboarder/AirOS_pre2.0,npotier/sf2Showcase,ctrl-f5/symfony-standard,ucay/Skeleton,marfillaster/symfony-se,mukulu/hris,alihalabyah/symfony-rest-edition,platformsh/platformsh-example-symfony,joferzs/firewall,cordoval/spike-edition,mayflower/sf2hackday,vincentaubert/symfony-standard,LogTweets/logtweets,WouterJ/symfony-standard,rubensayshi/prex-sf,symfony/symfony-standard,baukaman/NeedYou,kosintwong/symfony_test,webignition/worker.simplytestable.com,merk/comment-server,phiamo/symfony-bootstrap,mukulu/hris,orodsem/trout,yohang/non-obstrusive-form-sf2,phospr/symfony-starter,uttam-vi/pardawala,yohang/non-obstrusive-form-sf2,MatthieuCutin/ligue-squash,ybutb/videotask,ucay/Skeleton,gnugat-legacy/symfony-empty,wachterjohannes/sulu-standard,ovelasquez/ussi,simonjcarr/symfony_rest,ucsf-ckm/symfony-emberjs-edition,ctrl-f5/symfony-standard,vincentchalamon/phpunit-bridge,merk/Citadel,mkrauser/symfony-dump-demo,bshaffer/symfony-standard,ybutb/videotask,apnet/symfony-standard-edition,webignition/worker.simplytestable.com,chebetos/SymfonyTest,MatthieuCutin/ligue-squash,JMSBot/CSBill,twisted-socket/stage-plots,mqmtech/show-app,shadowtje1990/symfony_todo_api,benja-M-1/rogercms-sandbox,fernanDOTdo/reurbano,basdek/SymfonyFireWall,trsteel88/symfony-standard,gencer/CustomRouterExample,mykehsd/jobeet,cordoval/symfony-gae,flyboarder/AirOS_pre2.0,trycatch-au/Informative-Workspaces,marcoleong/MacauSE,underq/symfony-rest-edition-experiment,ovelasquez/ussi,wachterjohannes/sulu-standard,GulDmitry/music-diff,tdd-php/football,fernanDOTdo/reurbano,shcloudservices/agiletourreg,vincentchalamon/phpunit-bridge,hrisproject/hris,zeopix/Gaming,mbence/csaladsegito,webignition/app.simplytestable.com,rubensayshi/sf2CMS,IgorTimoshenko/symfony-standard-requirejs,hrisproject/hris,webignition/worker.simplytestable.com,dziamid/lunch-time-composer,Knouki/Jobeet-Symfony,tristanbes/symfony-standard,tarasinio/weather-remainder.com,HasClass0/standard-edition,zeopix/Eventos,fahadonline/sulu,pjcdawkins/tmp-symfony-demo,ucsf-ckm/symfony-emberjs-edition,symfony2-od-podstaw/26-01-sf21,blogsh/CustomRouterExample,tdd-php/literatura,sandello-alkr/symfony,Thiktak/Jordo,JMSBot/CSBill,xabbuh/symfony-standard,comfortablynumb/shopeet,twisted-socket/stage-plots,papaavola/symfony-standard,IgorTimoshenko/symfony-standard-requirejs,bshaffer/symfony-standard,gencer/symfony-standard,symfony/symfony-standard,delorenj/elleol_legacy,dantleech/symfony-doctrine-phpcr-edition,freecastle/Symfony2_Boilerplate,propelorm/symfony-propel-edition,b00giZm/symfony-boilerplate-app,gimler/symfony-rest-edition,tdd-php/angaze,jmather/symfony-sonata-distribution,NoUseFreak/StandardEdition,fernanDOTdo/reurbano,Chill-project/Standard,rdohms/PHPSP-Promos,tiagobrito/ds1.sfdaypt14,cordoval/symfony-bootstrap,delorenj/elleol_legacy,formapro-forks/api-basic,mhlavac/symfony-skeleton,cordoval/symfony-bootstrap,NoUseFreak/StandardEdition,isidromerayo/symfony2-jobeet,oustaban/eurotax,SymfonyId/Skeleton,basdek/SymfonyFireWall,zanderbaldwin/symfony-layers,micha149/wedding-page,sulu-io/sulu-standard,uttam-vi/pardawala,the-software-factory/superhero-api,SymfonyId/api-platform,UxorialRook/symfony-standard,Spea/symfony-standard,formapro-forks/api-basic,phospr/symfony-starter,rajkamalganeshvivid/symfony-standard,cordoval/symfony-bootstrap,lukaszgi/operowo,WolfMicrosystems/symfony-wms,gimler/symfony-rest-edition,mukulu/hris,Soullivaneuh/symfony-standard,damedia/culture.ru,mayeco/symfony-standard-pagodabox,mnapoli/symfony-standard,Tobion/symfony-standard,papaavola/symfony-standard,tarasinio/weather-remainder.com,JMSBot/CSBill,flevour/symfony-issue-3889,merk/comment-server,2085020/first-symfony-project,Soullivaneuh/symfony-standard,sulu-io/sulu-standard,dunglas/symfony-standard,rainbowcode/spanvoice-standard,Koc/symfony-standard,aerrasti/iemedebe,mweimerskirch/symfony-standard,OskarStark/symfony-standard,Cartesia/01,beyondkeysystem/psc-symfony-angularjs,xdissent/sonata-sandbox,tederkkila/snapshot_server,GulDmitry/music-diff,sebhoerl/SymfonyAuthenticationTest,fduch/symfony-standard-workflow,mayflower/sf2hackday,tPl0ch/symfony-phpqatools,flevour/symfony-issue-3889,oustaban/eurotax,phiamo/symfony-bootstrap,dkarvounaris/symfony-standard,symfony2-od-podstaw/knp-menu-example,tdd-php/football,irro/MastoAlliance,baukaman/NeedYou,trycatch-au/Informative-Workspaces,umpirsky/symfony-standard