Add Tip4Commit to list of crowdsourcing projects in the readme.
update jQuery
uppercased HTML tags -> lowercased
remove unneeded CSS vendor prefixes
remove IE  <= 7 star hacks
use python libsass library for SASS compilation
Merge pull request #1769 from seanlinsley/assets/1758-python-sass-compilation

[1758] Use Python-based SASS library for compilation
Updating the README.md to include SCSS information.
#1749: remove outdated OSX section from the README
#1729: remove top.json
Merge pull request #1774 from gittip/cleanup/remove_top.json

Remove top.json
Initial removal of MixPanel and Gaug.es
Fixing the tracking key missing error
Removing the horn feature
Accidental double ;
Removing the table dropping
Merge pull request #1776 from gittip/remove-horn

Remove the Horn
Don't show nav w/ only one button; #1466

With the horn gone in #1776 we don't want to show nav w/ only one
button.
Merge pull request #1778 from gittip/trim-nav

Don't show nav w/ only one button; #1466
Bump version to 10.2.0