clean up tmp files

screenshot and xml dumps are pulled from device and stored into
tmp directories, this leaves a lot of traces behind until the
system reboots. we now keep track of temp directories created
and delete them when the app exits.

Change-Id: I3190dd93c3b413afc0a513eaedf11409f3e5efa8
4 files changed
tree: ed910a03d6346543a95dd86c48c40c8ee40edeac
  1. .gitignore
  2. Android.mk
  3. MODULE_LICENSE_APACHE2
  4. uiautomator/