Require Ruby 1.9.2
Replace multi_json with json
add depend_on_asset directive description in README
two small docfixes in Sprockets::Processing
Update Travis Ruby Versions

Remove Ruby 1.8.7 & REE: officially EOL
Remove Ruby 1.9.2: unmaintained

Only test JRuby in 1.9 mode
Merge pull request #455 from landtax/master

add depend_on_asset directive description in README
Merge pull request #458 from tiegz/docfix

Two small docfixes in Sprockets::Processing
Merge branch 'remove_multi_json_dependency' of https://github.com/sferik/sprockets into sferik-remove_multi_json_dependency

Conflicts:
	.travis.yml
Merge branch 'master' of https://github.com/sstephenson/sprockets
Add minitest gem
Load minitest
Tests need to be test_
assert_not_equal is gone
assert_raise -> assert_raises
Merge pull request #469 from sstephenson/miniunit

Switch to minitest
Depend on execjs 2
Fixing a typo in comment
Merge pull request #474 from adomokos/fix_typo

Fixing a typo in comment
Fixed two more sets of tests not running under minitest

Same kind of problem as was fixed in
e840d7fedd180929d089f17d6d6e322e672780f0. This brings the total number
of assertions from 759 back to 1021.
Merge pull request #476 from jslag/master

Fixed two more sets of tests not running under minitest