GitLab

Add a .gitignore file

This file tells git to ignore the files generated via
./autogen.sh && ./configure && make

pass processlist flags to readOpenVZData (fixes build error)

but the current process will remain selected (so you can filter, choose and
then go back to unfiltered mode to see the children of that process).

Inspired by feedback at http://www.reddit.com/r/linux/comments/23wpc7/announcing_htop_103_with_new_features_bugfixes/ch1paos

Test by nesting 30 shells
Patch from ArchLinux. Closes #65.

For now rates won't be colored gray when zero; I'll think about that.