Updated version strings in conf.py to 2.0.0rc5
Updated version strings in conf.py to 2.0.0rc5

gennadiylitvinyuk/zf2-documentation,samsonasik/zf2-documentation,samsonasik/zf2-documentation,Rud5G/zf2-documentation,akrabat/zf2-documentation,Rud5G/zf2-documentation,rettal/zf2-documentation,gennadiylitvinyuk/zf2-documentation,rettal/zf2-documentation,akrabat/zf2-documentation