updated VENDORS for 2.7.8
updated VENDORS for 2.7.8

uttam-vi/pardawala,ovelasquez/ussi,Spea/symfony-standard,havvg/symfony-standard-propel,GulDmitry/music-diff,Tobion/symfony-standard,ovelasquez/ussi,Spea/symfony-standard,uttam-vi/pardawala,fduch/symfony-standard-workflow,jakzal/symfony-standard,SymfonyId/Skeleton,shamcode/symfony-testing,formapro-forks/api-basic,black-project/black-standard,dunglas/symfony-standard,the-software-factory/superhero-api,simonjcarr/symfony_rest,GulDmitry/music-diff,lyrixx/symfony-standard,symfony/symfony-standard,kmelia/fresh-symfony,dunglas/symfony-standard,simonjcarr/symfony_rest,havvg/symfony-propel-edition,kmelia/fresh-symfony,fabpot/symfony-standard,SymfonyId/Skeleton,havvg/symfony-propel-edition,debruyne0/symfony,jakzal/symfony-standard,proteichik/testApp,gencer/symfony-standard,taylankasap/symfony-standard,fduch/symfony-standard-workflow,symfony/symfony-standard,Cartesia/01,the-software-factory/superhero-api,egeloen/symfony-standard,uttam-vi/pardawala,taylankasap/symfony-standard,symfony-cmf/standard-edition,vincentaubert/symfony-standard,WolfMicrosystems/symfony-wms,apnet/symfony-standard-edition,formapro-forks/api-basic,egeloen/symfony-standard,WolfMicrosystems/symfony-wms,proteichik/testApp,stof/symfony-standard,kmelia/fresh-symfony,propelorm/symfony-propel-edition,Tobion/symfony-standard,lyrixx/symfony-standard,stof/symfony-standard,vincentaubert/symfony-standard,fabpot/symfony-standard,havvg/symfony-standard-propel,debruyne0/symfony,ovelasquez/ussi,GulDmitry/music-diff,Cartesia/01,Cartesia/01,propelorm/symfony-propel-edition,symfony-cmf/standard-edition,umpirsky/symfony-standard,apnet/symfony-standard-edition,apnet/symfony-standard-edition,gencer/symfony-standard,shamcode/symfony-testing,trsteel88/symfony-standard,GulDmitry/music-diff,trsteel88/symfony-standard,umpirsky/symfony-standard,black-project/black-standard