Initial rule set for timechart parser rules.
Unimplemented -> implemented.
Changed regex so things with underscores become IDs instead of WORDS.
Time chart parser, passing tests.
Changes to the eval and stats rules so that they work better for other commands. Also fixed a reduce/reduce error that was previously unnoticed.
New tests for timechart parser plus fixes to eval and stats for the change from WORD tokens to ID tokens for tokens with underscores.
Had to add and fix some rules so that macros work.
Added temporary editor files to the .gitignore.
Updated rename parser tests to reflect the fact that words with underscores are now tokenized as IDs instead of WORDs.
Merge pull request #23 from salspaugh/timechart

Merge timechart branch.