Secondary SSD autodecryption

If $HOME/bin/automount_ssd.sh exist, assume system has secondary SSD installed
and automatically mount it as an ecryptfs encrypted folder.
Update Android Studio Path

Update user $PATH to reflect the new location of Android Studio in
$HOME/opt/android-studio ..
Add rust.vim

Add rust syntax highlighting plugin for vim.
Merge branch 'master' of github.com:pacebl/dotfiles