dotconfig/i3/config: make the resize keys more intuative
dotbash_git: add git_branches_touching function
rsync filters: more aggressive filtering of stuff

This isn't helped by the large trees I'm now dealing with (esp Android).
This is starting to bring the whole thing under some sort of control.
fixes for latest rtorrent
Merge branch 'master' of /home/alex/mysrc/dotfiles.git/
Xresources: clean up colour theme, make more zenburny...
dotbashrc: fix pollution of non-login terms

The PROMPT_COMMAND refers to a bash alias, which only exists if you have
the full profile loaded. This gets overriden later in full profile mode.
mbsync: slightly more expansive settings for developer.
mailrc: update with more ML aliases