Array elements are initialized to zero by default

git-svn-id: http://svn.code.sf.net/p/angelscript/code@1962 404ce1b2-830e-0410-a2e2-b09542c77caf
Array elements are initialized to zero when resizing the array too

git-svn-id: http://svn.code.sf.net/p/angelscript/code@1963 404ce1b2-830e-0410-a2e2-b09542c77caf