Add a vim modeline at the bottom of source files to facilitate following Gajim coding standards.
The tabs thing is making me crazy :). A single comment at the bottom of each source file would make life for Vim users easier, as well as ensure that certain coding standards are met. Things like tabstops and widths can be added there. The attached patch adds the modeline to the bottom of each file with only the "noexpandtab" setting included for now.