Zsh: Use alias for Vim, not a function.
Zsh: Alias 'docker' to always use 'sudo'.
Vim: Update vim-airline theme.
Vim: Update Vundle.
Vim: Experiment with hiding the tabline while editing.

This is an experimental commit which hides the tab line and reveals it
only when navigating between tab pages (or using <C-G> to print the
ruler).
Vim: Drop Supertab as it didn't seem to get much use...

...but it did get in the way quite a bit.
Vim: Drop legacy Cyrillic mapppings in INSERT/COMMAND mode.
Vim: Refactor FastFindersSearch, no functional changes.
Vim: Update vim-airline symbol for the PASTE indicator.
Vim: Ignore spelling for some common class names.
Vim: Experiment with <C-{J,K}> jumping lines in INSERT mode.