mktime_tz is blocking, don't use it

Change-Id: I0a66a69b68d975389302ae4361c9c106eb722538
MTP: fix some code paths

Still doesn't fix the bug of copying zip files to the root of
storage in Windows.

Change-Id: Iddec66a49c17cf48cbd1c67ad6679349ece8e05c
Merge pull request #7 from omnirom/android-4.4

update