Added the storage and printing of history. Currently stores previous 20 commands in an array. Not persistant
Updated the version history. Added minor tweaks.
The broken piece of crap we currently have.
Added the feature to invoke previous commands
Fixed the problems with the inputs like 'pwda'
Fixed the bug where a history invocation with an int followed by a string were deemed valid, when they shouldn't have been.
Updated VERSION
feature_history merge conflicts fix