missing semicolon
defined but not used
Defined but not used.
Convert unconventional use of expressions.
Fix undeclared variable, as detected by jshint.
Fix JSHint complaints.
JShint complained about use of == in conditionals.
Remove extraneous tool tip.
Crockford's triple-equals rule.
Fix missing declaration of tAttrNames, and use of && outside of expression.
In DG.color, gather variable declarations to top of function, move function declared in loop to the top, and fix a Crockford triple-equals violation.
Several Crockford triple-equals fixes. Refactor use of '>>' for truncation to make it clearer. Other jshint fixes.
Changes from code review.

Fix remaining jshint warnings. Add jshint global comment to disable complaints about Leaflet global. Remove unused variables that had been commented out.
Merge branch 'jshint-cleanup'
Merge branch 'master' of https://github.com/concord-consortium/codap