Welcome to the Sublime Additional Syntax Highlighters repo!
for Mac:
1.Copy the directory with syntax(.tmLanguage) into Sublime's Packages directory
{~/Library/Apllication\ Support/Sublime\ Text\ 2/Packages/}
2.Restart Sublime Text 2
for Linux:
1. Copy the .sublime-package file into Sublime's Pristine Packages directory
{[Sublime installation Path]/Pristine\ Packages/}
2. Restart Sublime Text 2
3. If you got error about .cache remove directory ~/.config/sublime-text-2 and Restart Sublime Text 2