Fixed the if statement so the empty square brackets are not displayed and removed the line printing the value of gitchecked
Fixes #1. This should fix the bashprompt deletion issue though it now means that the prompt begins one space after the $ sign. Also fixed changes to gitupdates as the previous commit deleted the contents of the ~/.sys_facts file on shut down when it was meant to remove the last line. It is necessary to use a temporary file. Started work on install so that frombase.txt can be more useful by allowing search for types of packages. This will probably be moved to another branch as it progresses.