I'd like to know if there is an option on Sublime text to close and re open, for using after installing some plugin or in bug case.. I've been searching but I couldn't find anything... Thanks.
You can use the Restart plugin/package in Sublime Text 2 as well as Sublime Text 3. Install it from Package Control's package install in your sublime text.
After installing Restart, simply press F5 key or use File > Restart option.
Note: To open package control use Ctrl/Command + Shift + P.