Added code to for storing conversation as file.
Outsourced date creation to global function.
Change creation of file to include time.
Added notes for connecting and disconnecting to the save file.
Merge branch 'release-0.4.6' into develop
Merge branch 'feature-saveconv' into develop
Changed formatting of date string to conform with that needed for Skype parser.
Committed dat folder without contents so that med.js would work immediately without need for creation of dat folder.
Bumped version to v0.4.7 and updated documentation.
Merge branch 'release-0.4.7'