EAGLESIX-2651: update gitignore
EAGLESIX-2651: fix space indents in tab indented files
Merge branch 'feature/mongo_2.6.5_expressions' into feature/mongo_2.6.5_documentSource

* feature/mongo_2.6.5_expressions: (24 commits)
  EAGLESIX-2651: fix space indents in tab indented files
  EAGLESIX-2651: update gitignore
  EAGLESIX-2651: rename accumulator tests to _test.js to avoid conflicts with helper files
  EAGLESIX-2651: Map: fix optimize test case typo
  EAGLESIX-2651: rename tests to _test.js to avoid conflicts with helper files
  EAGLESIX-2651: Map: fix optimize test case
  EAGLESIX-2651: FieldRange: remove unused expression
  EAGLESIX-2651: fix jshint in tests
  EAGLESIX-2651: Let: better sync w/ 2.6.5 code, fix tests to match new code
  EAGLESIX-2651: Let: fix jshint and format in test
  EAGLESIX-2651: Nary: fix failing tests, related bugs
  EAGLESIX-2695 it is easier to fix the typos now...
  EAGLESIX-2695 fixed a typo, put a call-out in the test for Kyle's descerning eye.
  EAGLESIX-2695 The Gauntlet, a reasonably thorough test case, works.
  EAGLESIX-1695 in preparation for another merge with expressions
  EAGLESIX-2695 Fiddled with the test cases.
  EAGLESIX-2695 Completed all test cases expect a full blown test that requires expressions that are not yet available.
  EAGLESIX-2695 Corrected a bug in ObjectExpression that would cause optimizations to be dropped on the floor. Continuing to work through $let test cases.  More To Come.
  EAGLESIX-2695 More improvements, with More To Come.
  EAGLESIX-2695 Improving the tests, correct code bugs. More To Come
  ...
Merge branch 'feature/mongo_2.6.5_documentSource' into feature/mongo_2.6.5_documentSource_Group

* feature/mongo_2.6.5_documentSource:
  EAGLESIX-2651: fix space indents in tab indented files
  EAGLESIX-2651: update gitignore