do not remove haxelibs on "make install"

git-svn-id: http://haxe.googlecode.com/svn/trunk@6464 f16182fa-f095-11de-8f43-4547254af6c6
unify value when calling abstract setter (fixed issue #1721)

git-svn-id: http://haxe.googlecode.com/svn/trunk@6465 f16182fa-f095-11de-8f43-4547254af6c6
generate abstract implementation classes with trailing underscore (fixed issue #1707)

git-svn-id: http://haxe.googlecode.com/svn/trunk@6466 f16182fa-f095-11de-8f43-4547254af6c6
type without completion optimization if first completion failed (fixed issue #1286)

git-svn-id: http://haxe.googlecode.com/svn/trunk@6467 f16182fa-f095-11de-8f43-4547254af6c6
Merge branch 'haxe/master'