Remove extra files from repo, add missing dependency includes
Add TravisCI file.
Updated to use last 1.6.0 snapshot to prevent blocking from download mirrors.
Switch to old version of readgamesounds.inc, the new version will never be used as it's going to be part of SourceMod 1.7.
Merge branch 'master' into 3.3
Removed support for ReadGameSounds.  Instead, if compiled against SM 1.7, include support for the SDKTools version.