Added subtasks to the add query.
Handle whitespace ourself, for consistency.

Conflicts:
	You-NLP/date_time_parser.h
Directly deal with dates as a nested grammar instead of converting it to a string then sending it off.

Conflicts:
	You-NLP/query_parser.cpp
Add error reporting to the date-time parser.
Time is the date time parser itself.
Got sick of all the compile warnings.
More warning suppressions.
Combine PCHs.
More warnings suppressed.
More warnings fixes.
Our date parser might not parse a complete string.
Use narrow characters to save space.
Implement parsing subtasks.
Fix lint.
Merge pull request #288 from lowjoel/dependency-parsing

Dependency parsing