Now finds and scans scripts.
Finds all scripts
Rather than creating a separate source unit for each script, all extra scripts are added to single source unit called PythonScripts. Jedi seems to handle this well.
Merge branch 'master' into nonpackage-scripts
Added environment variable configuration that prevents the analysis of loose scripts.
Will always scan for scripts.
One function is used to scan for files. Hash Map is used to lookup if a file has been scanned or not.
Merge branch 'master' into nonpackage-scripts
Shortened script unit name to '.'
Merge branch 'master' into nonpackage-scripts

Conflicts:
	python/scan.go
Merge pull request #7 from sourcegraph/nonpackage-scripts

Analyze Scripts not in a Package