Calling project on value calls appropriate accessor on pie
Moving value out of constructor

Adding jsdoc in class
Update piePlot.ts

Modifying documentation to be more clear
Merge branch 'piePlot' into projectValue

Conflicts:
	test/components/plots/piePlotTests.ts
	test/tests.js
Merge branch 'piePlot' into projectValue
Supported projection attributes -> Primary projection attributes
Forgot verifier.end()
Merge pull request #1054 from palantir/projectValue

[Pie] - Calling project on value calls appropriate accessor on pie