[composer] Match PHP required version with ZF2
[composer] Match PHP required version with ZF2

This makes easy to know what PHP version is expected to be installed
edigomes/ZendSkeleton,mikaelh/docker-php-amazon,struters/zf2-geoffrey-v,leonardogama/Zend,nghiadd/ZendSkeletonApplication,vrkansagara/ZendSkeletonApplication,yosiazwan/ZendSkeletonApplication,edigomes/ZendSkeleton,CentiTeam/neu,rpaneru/zf2app,wtfckkk/ZendSkeletonApplication,wellscorp/onlinemarket.work,AlysonRodrigo/LojaVirtualOnline,nghiadd/ZendSkeletonApplication,maljuboori91/pizza,jeremiahsmall/ZendSkeletonApplication,israelNascimento/zf2angularjs,DeybeeCZ/testzf2,sncardonam/cursozf2,alexandrebsimao/zf2_tutorial,DeybeeCZ/testzf2,vicbaporu/aersa,TiagoAMarek/AlbumInventory,CentiTeam/neu,cem20903/estudiozend,daviddonnelly/zf2-tutorial,mariuszfilip/gra_symulacja,Saeven/ZendSkeletonApplication,tigrantv/ZendSkeletonApplication,jeremiahsmall/ZendSkeletonApplication,lucky1603/PmsApp,Gab-Santini/guestbook,NewtonsNerds/INerdsDashboard,DeybeeCZ/demoForm,tamalroy059/ZendSkeletonApplication,GabrielSenna/aula_zf2,netroby/ZendSkeletonApplication,zxw1321/Zendframwork2,webimpress/ZendSkeletonApplication,wtfckkk/test,jarvis0512/aersa,rajeebsaraswati/zf2-busodisa,nawelAb/kwaret,Stanimirdim92/ZendSkeletonApplication,hashcv/ZendSkeletonApplication,neoka4/git-learn,tamalroy059/ZendSkeletonApplication,sabir-jamia/ZendTestcube,rlandas/vermilian,ChristianKolling/one-solutions,breakx/zfskeleton,tiagolican/aula,marquimrock/zf2,oscar121/tesis,fxcosta/Zend2SkeletonForProof,Stanimirdim92/ZendSkeletonApplication,lucasruchel/hrzend,mariuszfilip/ddd_uslugi_finansowe,wtfckkk/test,nfsmostroman/zendp,cmius/myresume,elialejandro/ZendSkeletonApplication,reigh-saga/Semicolon,edorosh/dcms,websafe/ZendSkeletonApplication,flaviojdp/zf2fundamentals,ralfbs/zf2-skeleton--doctrine,cl3dson/Curso-Zend-Framework-2,AICIDNN/ZendSkeletonApplication,wtfckkk/test,oscar121/tesis,mariuszfilip/gra_symulacja,sonny-one/zero,hashcv/PonManager,ChristianKolling/one-solutions,lucasruchel/hrzend,NinjaVampirate/forum,marlesson/test_zendf,jarvis0512/aersa,henryisaquiel/onlinemarket.work,imsauravsingh/zf2,nawelAb/kwaret,sabir-jamia/ZendTestcube,evandrolacerda/Zend_Curso_Elaborata,ahdail/zf2-fundamentals,rkhas/test_zenf_2,NewtonsNerds/INerdsDashboard,rajeebsaraswati/zf2-busodisa,riseray/ZfDealsApp,marquimrock/zf2,edorosh/dcms,wtfckkk/ZendSkeletonApplication,asmhendrix1992/AsmHendrixApp,mauacruz/onlinemarket,alihammad-gist/practice_zf2,hashcv/ZendSkeletonApplication,sncardonam/cursozf2,PoetikDragon/ZendSkeletonApplication,Wwazam/Pracca_Toinon,vitaliy5118/zf2,welintonInfo/Discoteca,soulso/poster-for-tomorrow,jarvis0512/aersa,wfmaster/cursozf2,sonny-one/zero,umamiMike/zendSkeletonVagrant,Statos/zf2-users-test,fmancari/FRM,Wwazam/Pracca_Toinon,rohithegde/ZendDoctrineSampleApplication,nfsmostroman/zendp,PoetikDragon/ZendSkeletonApplication,fmancari/FRM,sydorenkovd/Zend.local,ralfbs/zf2-skeleton--doctrine,visma-devtrend/docker-php-amazon,struters/zf2-geoffrey-v,breakx/zfskeleton,visma-devtrend/docker-php-amazon,wellscorp/onlinemarket.work,reigh-saga/Semicolon,WFPColombia/nutrifami-webapp,NewtonsNerds/INerdsDashboard,naghiLiviu/myProfiPhoto,WFPColombia/nutrifami-webapp,DanielBerman/zf2,brunoirodriguez/zend-project,lucianjunio/teste2,edsonlb/zf2_skeleto_application,elialejandro/ZendSkeletonApplication,daviddonnelly/zf2-tutorial,hashcv/PonManager,Gab-Santini/guestbook,ther12k/ZendSkeletonApplication,ahdail/zf2-fundamentals,mikaelh/docker-php-amazon,ifati/pizza,AICIDNN/ZendSkeletonApplication,ederunt/practica,alihammad-gist/practice_zf2,junaooaks/inicio,nfsmostroman/zendp,beatrizbandeirar5/cursoszf2,rpaneru/schools,hmschreiner/ZendSkeletonApplication,hashcv/PonManager,vicbaporu/aersa,marquimrock/zf2,amarlehal/sainsburyconsoleapp,marlesson/test_zendf,projetopim2015job/homologacao,DeybeeCZ/testTdd,nstapelbroek/ZendSkeletonApplication,henryisaquiel/onlinemarket.work,beatrizbandeirar5/cursoszf2,cmius/myresume,nstapelbroek/ZendSkeletonApplication,riseray/ZfDealsApp,rpaneru/schools,hmschreiner/ZendSkeletonApplication,vicbaporu/aersa,welintonInfo/Discoteca,DeybeeCZ/demoForm,slaff/zf2-minify,sabir-jamia/ZendTestcube,slaff/zf2-minify,friend4u-981/real-estate,Saeven/ZendSkeletonApplication,visma-devtrend/docker-php-amazon,rohithegde/ZendDoctrineSampleApplication,naghiLiviu/myProfiPhoto,amarlehal/sainsburyconsoleapp,lucky1603/PmsApp,netroby/ZendSkeletonApplication,ederunt/practica,Wbondar/Buddies,lucky1603/PmsApp,evandrolacerda/Zend_Curso_Elaborata,NinjaVampirate/forum,ChristianKolling/one-solutions,AlysonRodrigo/LojaVirtualOnline,mariuszfilip/gra_symulacja,edorosh/dcms,projetopim2015job/homologacao,yosiazwan/ZendSkeletonApplication,vicbaporu/aersa,rpaneru/schools,israelNascimento/zf2angularjs,cem20903/estudiozend,hashcv/ZendSkeletonApplication,friend4u-981/real-estate,Wwazam/Pracca_Toinon,wfmaster/cursozf2,ifati/pizza,WFPColombia/nutrifami-webapp,sydorenkovd/Zend.local,projetopim2015job/homologacao,elialejandro/Zf2AplicacionBasica,CentiTeam/neu,akrabat/ZendSkeletonApplication,maljuboori91/pizza,ther12k/ZendSkeletonApplication,angreh/loginZend,edigomes/ZendSkeleton,soulso/poster-for-tomorrow,TiagoAMarek/AlbumInventory,vitaliy5118/zf2,mauacruz/onlinemarket,rpaneru/zf2app,vrkansagara/ZFBlog,DeybeeCZ/testTdd,fxcosta/Zend2SkeletonForProof,brunoirodriguez/zend-project,Statos/zf2-users-test,flaviojdp/zf2fundamentals,lucianjunio/teste2,NewtonsNerds/INerdsDashboard,webimpress/ZendSkeletonApplication,elialejandro/Zf2AplicacionBasica,leonardogama/Zend,slaff/zf2-minify,welintonInfo/Discoteca,mariuszfilip/ddd_uslugi_finansowe,cl3dson/Curso-Zend-Framework-2,umamiMike/zendSkeletonVagrant,zxw1321/Zendframwork2,junaooaks/inicio,imsauravsingh/zf2,tiagolican/aula,vrkansagara/ZFBlog,vijayxtreme/simpleZendApp,murtanof/ZendTryOut,websafe/ZendSkeletonApplication,imsauravsingh/zf2,murtanof/ZendTryOut,sonny-one/zero,DanielBerman/zf2,angreh/loginZend,rlandas/vermilian,sonny-one/zero,patgiolo/earthquake-service,jarvis0512/aersa,oscar121/tesis,lucasruchel/hrzend,akrabat/ZendSkeletonApplication,GabrielSenna/aula_zf2,Pegazuxxz/ZF2_Trainning,israelNascimento/zf2angularjs,alexandrebsimao/zf2_tutorial,edsonlb/zf2_skeleto_application,rkhas/test_zenf_2,vijayxtreme/simpleZendApp,Wbondar/Buddies,nfsmostroman/zendp,wtfckkk/test,tigrantv/ZendSkeletonApplication,Pegazuxxz/ZF2_Trainning,patgiolo/earthquake-service,elialejandro/Zf2AplicacionBasica,asmhendrix1992/AsmHendrixApp,mikaelh/docker-php-amazon,vrkansagara/ZendSkeletonApplication,neoka4/git-learn