Merge pull request #611 from xsacha/master

Buildfix for Symbian
Fix issue with half sized skinned objects in SW transform.
Warning fixes, very minor updates to shader generators.
JIT x86: cvt.s.w
Don't convert texcoords to float either.
Let's not declare vertex arrays as RELIABLE for now.
Fix UV error introduced in previous commit
armjit: Fix and enable sltiu, correct this time I think...