The escape sequences necessary for controlling the terminal's colors
confuses FTP clients. Therefore, we only use the colors when we can
actually see them -> shell is running interactively.
By using a for loop, new entries can easily be added to the PATH without
having to enter additional commands. The precedence of the entries can
also be easily adjusted by reordering the list that is iterated over.
The local man pages intalled in /usr/local/share/man should be checked
before the system's man pages for matches, since the tools installed in
/usr/local/bin have precedence over the ones at /bin and /usr/bin.
Change bash history management to ignore consecutive duplicates and
commands starting with a whitespace.
Window navigation is reverted to vim's stock key combination, since tmux
is configured to work very similarly (using its prefix instead of
CTRL-W).
Window resizing is done more deterministically by adding/removing
columns/lines instead of using multipliers on the window height/width.
autocmd is used to hard code the file type to certain file names, since
vim expects them to have the standard names starting with a dot but the
files are tracked in the repository without the leading dot.
Add a <leader> mapping to quickly toggle between the current and
previous file.
Add a <leader> mapping to quickly toggle dark/light background.
Cosmetic change: all key codes are lower case.
