Preparing to deprecate asBEHAVE_IMPLICIT_VALUE_CAST and asBEHAVE_VALUE_CAST

git-svn-id: http://svn.code.sf.net/p/angelscript/code/trunk/sdk@2025 404ce1b2-830e-0410-a2e2-b09542c77caf
Fixed bug when comparing two handles and one is a handle to a read-only object


git-svn-id: http://svn.code.sf.net/p/angelscript/code/trunk/sdk@2026 404ce1b2-830e-0410-a2e2-b09542c77caf
Deprecated asBEHAVE_VALUE_CAST and asBEHAVE_IMPLICIT_VALUE_CAST

git-svn-id: http://svn.code.sf.net/p/angelscript/code/trunk/sdk@2027 404ce1b2-830e-0410-a2e2-b09542c77caf