import latest Android-Terminal-Emulator project

commit 7f63721b82f4e3d8f3b6282d441282a68266a0a1
just remove docs
Changes to use latest emulatorview

1. move getCharacterWidth and Height to TermView by using
reflection.
2. update settings according to new emulatorview
add term type preference for 256 colors
v2.0