bashrc: real time bash history

* Command history will be shared between concurrent terminal sessions
  immediately.

Signed-off-by: Adrian-Tudor Panescu <adrian@panescu.com>
bash_aliases: lithium version

Signed-off-by: Adrian-Tudor Panescu <adrian@panescu.com>
gitconfig: remotes

Signed-off-by: Adrian-Tudor Panescu <adrian@panescu.com>
vim,screen: options enabling

Signed-off-by: Adrian-Tudor Panescu <adrian@panescu.com>