.bashrc/.bash_aliases: new alias management

Researched a little about aliases. This makes some of the functions in .bashrc
unnecessary.

Signed-off-by: Erik Bernoth <erik.bernoth@gmail.com>
.gitconfig: added simple pushing

This will remove the necessety to worry with push -f I hope.

Signed-off-by: Erik Bernoth <erik.bernoth@gmail.com>