Corrected strange issue of missing colon in l11
Added dzen2 configuration, no fontpath setting
various vimrc stuff

* Use listchars to display trailing whitespace and so on.
* Use showbreak to make warped lines easier to read
* Use colorcolumn to stay under 80 columns
* Use 2 spaces for identation
* Display tabs as 4 width characters
* Add '//L' abr for C commented separation line