Fix IE test failures caused by Time Axis tests choking.

Time Axis tried to set text-anchor to "left", which isn't a valid
value.
using grunt-ts@1.11.6 to use the latest version of typescript
removed extra line added by accident
Merge pull request #762 from palantir/fix-ie-tests

Fix IE test failures caused by Time Axis tests choking.
Merge branch 'master' into typescript-impatient

Conflicts:
	plottable.js
	test/tests.js
Merge pull request #764 from palantir/typescript-impatient

using grunt-ts@1.11.6 to use the latest version of typescript
added an afterEach call
added after check for any svgs
Merge pull request #772 from palantir/remove-svg

Remove svg after tests in CachingCharacterMeasurerTests
Merge branch 'master' into css-plot

Conflicts:
	plottable.js