{Z,Ba}sh: add `ttr` alias
{Z,Ba}sh: add `ttr` alias

This could be a cleverer function that only does anything if it knows
it's inside a Rails/Passenger repo, but a simple alias is good enough
for now, especially seeing as I hope to not have to use Passenger again
in the future.

Signed-off-by: Wincent Colaiuta <c76ac2e9cd86441713c7dfae92c451f3e6d17fdc@wincent.com>

wincent/wincent,wincent/wincent,wincent/wincent,wincent/wincent,wincent/wincent,wincent/wincent,wincent/wincent,wincent/wincent