752 - Formatters are now simple functions

Close #752.
Merge branch 'master' of github.com:palantir/plottable into 752-simpleFormatters

Conflicts:
	plottable.d.ts
	src/components/numericAxis.ts
	src/utils/formatters/customFormatter.ts
onlyShowUnchanged param and dependency fixing
onlyShowUnchanged param and dependency fixing
Merge branch '752-simpleFormatters' of github.com:palantir/plottable into 752-simpleFormatters

Conflicts:
	plottable.js
	test/tests.js
	test/utils/formattersTests.ts
si -> siSuffix
Removing onlyShowUnchanged var from siSuffix
Fixing API breakage in quicktests for formatter
Change default formatter for numericAxis/baseAxis
Adding jsdoc for formatters
Cleaner jsdoc with defaults
Specifying default values
any -> type inferred for CategoryAxis constructor
Merge branch 'master' into 752-simpleFormatters

Conflicts:
	plottable.d.ts
	plottable.js
	src/components/baseAxis.ts
Formatters under a Formatter interface
- return this;
fix tests
Merge pull request #810 from palantir/785-no-chains

Stop chaining internal methods
Merge pull request #795 from palantir/752-simpleFormatters

752 - Formatters are now simple functions
Merge branch 'master' into dragevents

Conflicts:
	plottable.d.ts
	plottable.js
	test/tests.js