suppress proguard warnings for tika.
changed submodule url to public variant.

see http://docs.travis-ci.com/user/build-configuration/#Use-Public-URLs-For-Submodules
move lib project contents to app module.

no need to have a separate module for this.
Merge branch 'dev' of github.com:alphaDev-net/drive-mount into dev
generic interface to read file attributes.
copy file to local cache on open

and return a FD pointing to the cached file.
changed filesystem api.