[Bash] Improve Screen support

* Force screen to execute on every shell through bash_profile.
* The PS1 line causes RED input if a Screen session is not running
* Display a list of detached screens if available. Once per boot
[Bash] Do not autoload screen. Had weird problems with that
[Bash] Remove unnecessary cruft from bashrc and quote variables correctly
[ViM] New Plugin cscope_maps and other cscope functionality
[ViM] Improved Word Processing

Add new WOrd Processing mode using :WP command. This sets some settings best
used only when writing long texts.
[ViM] Updated spell file
[ViM] The thesaurus is autogenerated. Don't handle it in git