[#398] revert version change
[#398] revert version change

- Reverted to 2.0.3dev

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