Removed ClangComplete since it's just for ST2-specific auto-complete.
Merged changes from https://github.com/quarnster/SublimeClang upto commit https://github.com/quarnster/SublimeClang/commit/f5574d10c81b6a1fb57195c12bc5c75a830765c6
Made is_member_completion a method of SublimeClangAutoComplete.