Updates to spec.utils.  Starting to work on parsing out metadata
Further updates to meta-data extraction code
Further updates to meta-data extraction

Start of extraction code from ASD files
New updates to spec.utils.

Updates to ASD metadata extraction code.  Added file format refs to
package directory
update to .gitignore
Updates to metadata extraction code

Still in progress.
Updated TODO list
Updates to extract.metadata & extract.metadata.asd
Corrected bugs in extract.metadata.asd()
Changes to extract.metadata.asd().

Cleaning up code to run on single files and directories of .asd files.
Still needs some work to generalize results.
Merged serbinsh/master with master

Merge remote-tracking branch 'serbinsh/master'

Conflicts:
	.gitignore