added work around for limits 2 error
Fixed again
Merge remote-tracking branch 'upstream/master'

Conflicts:
	exercises/limits_2.html
Merge branch 'master' of git://github.com/Khan/khan-exercises
Merge remote-tracking branch 'upstream/master'

Conflicts:
	exercises/limits_2.html
Caesar Cipher Exercises 1-4
Cipher Exercises 1-4: Updated text
Trying to get rid of old commit difference
revert old commit of limits_2 to current upstream version
Tweaks based on user feedback
Added IE10 CSS hack to properly format interactive slider
Cleaned up some tags, fixed Barchart display
Added canvas support to fix formating. Added tech demo
Added library and exceptions to support IE 8 and interactive bar chart
Reverted all of the workarounds. Made it work the right way.
Merge branch 'workbench' of git://github.com/NickKolesar/khan-exercises
whitespace

Test plan: none
Clean up caesar cipher challenge exercises (i18n lint and style)

I think these are pretty much hopeless for internationalization, but at least
they pass the linter.

Test plan: look at exercises in local mode

Auditors: emily