update escape docs to remove /
update changelog about /
Merge pull request #1379 from akre54/escape-docs

Update escape docs for /
Restrict _.union and _.difference to accept arrays only
Merge branch 'master' of https://github.com/jashkenas/underscore
Merge remote-tracking branch 'upstream/master'
adding contrib links
new intro
merged
merged
Merge branch 'gh-pages' of https://github.com/jashkenas/underscore into gh-pages
_.partition iterator and context.
Merge pull request #1463 from braddunbar/partition

_.partition iterator and context.
Semicolons, style.
Merge pull request #1465 from braddunbar/semis

Semicolons, style.
Add _.matches link to sidebar
Merge pull request #1466 from cobbweb/patch-1

Add _.matches link to sidebar
Fixes #1470 — include minified versions in packages
Merge branch 'master' of https://github.com/jashkenas/underscore
Clarify _.each return