added css snippets, standardized tabs
added snippets for imported compass module: css3
added remaining compass snippets. fixed function typos. added constants, variables, and functions to each compass module. removed ommissions (see README for details).
updated README file
removed redundant css snippets.
added searchable lables to css snippests
updated sass functions with other-color, string, list, and miscellaneous functions.  updated comments
README typo fix
revised README file
added tab for new line to every snippet
revised README file
README spelling typos