add sourceMapDir option
Change sourceMappingURL from //@ to //#. Closes GH-88.
Update sourceMappingURL tests. Ref GH-88.
Revert "Update sourceMappingURL tests. Ref GH-88."

This reverts commit ada90dd666ff8ff59ee8caf77b10302dc373e807.
Fixing source map tests. Ref GH-88.
finished up the sourceMapDir option
fixed expected results to accommodate new sourceMapDir option
added a compilation step in Gruntfile, a test suite, and expected results for the new sourceMapDir option
add documentation for sourceMapDir option. [ci skip]
v0.8.0