fix typo in bash_aliases
Escape termination ; in gpa since it gets nested in succeeding alias, and swallowed
moving gpa and freshen_repos alias into shell script for clarity and simplicity, multiple levels of shell escapes suck
remove unneeded comment
cp the new gpa/freshen_repos script into ~/bin, creating ~/bin if needed
Fix bug where freshen_repos stumbles if a file that's  not a dir is in the dir you are trying to freshen
Merge pull request #7 from weaselkeeper/master

Move gpa and freshen_repos from aliases, to shell script.