Add topValues(k) and bottomValues(k) to dimension.
Add value accessor to dimension.
Adding topValues(k) and bottomValues(k) to src/crossfilter.js
Added unit tests for topValues(k) and bottomValues(k)
Merge pull request #1 from existentialism/top-tests

Added unit tests for topValues(k) and bottomValues(k)
fix Makefile: start & end JS snippets already take care of the exports; no need for hardcoding that in the Makefile itself.
reverted to 'vanilla' where it concerns 'old browsers' (IE7/8): the Underscore-based backwards compatible support has been removed: now the code always uses the native functions any time.
fixed the Makefile + regenerated the flattened source files.
merging aaronaverill to latest crossfilter (1.2.0)
readding minified file
Adding userAgent conditional for old ios devices that define Uint8Array inconsistently
Updating compiled files
Merge remote-tracking branch 'remotes/trimbletodd/master'

Conflicts:
	crossfilter.min.js
coding std: one instruction per line
whitespace police raid
Merge branch 'master' into gh-pages