.vimrc: A bunch of changes:

- Add lots of new plugins
- Replace powerline with airline
- disable arrow keys to get used to hjkl
- use ctrl+n for nohl
- minor updates in various plugins' configs
- enable mouse
.Xresources: Use patched DejaVu fonts needed to display the fancy icons in airline
.vimrc: add shortcuts for buffer movements
.vimrc: Add new syntax files for yaml files, the default ones gets them stuck
.Xmodmap .i3 .xinitrc: Swap alt-super keys, use caps lock as i3 modifier

caps lock had to be remapped to right control key
.Xmodmap: fix comments
.i3/config: replace shift with alt for move operations

it is not convenient now to hit capslock+shift for moving
.noipupdaterrc: Move noipupdater config file, add ther LOGDIR and CACHEDIR