crbuild: Fixed runtime

Was not properly calculating seconds remainder.
crbuild: Fixed error when removing param which didn't exist.
vim: Added BB macro for opening blink file.
repeater: Very simple script to run a process for testing.

Will run N times, and in parallel.
vim: Added ack.vim bundle
Capitalized functions to eliminate new Vim warning.

Not sure why the warning started to occur every time Vim was started.
Possibly due to including ack.vim.
crbuild: Added ${xvfb}

Added xvfb variable for running xvfb.
crbuild: Added GetTopDir()
crbuild: Improved platform determination
crbuild: Supporting ASAN on Android
test_repeat: Minor misc tweaks
vmod: Better parsing of file changes
crbuild: Building nacl
bash: Added logcat alias