Improved Lisp package for Sublime Text 3.

Includes:

• build systems for SBCL and Clozure CL
• minor sensible settings for Lisp files
• default comment syntax in #|| and ||# shape (for Emacs compatibility)
• revamped Lisp language scoping covering more syntax (originally based on baskerville's for TextMate), designed to be used with xurxodiz's Cool-Graal theme