Squashed commit of the following:

commit cda99cc971bec1e5e0435cda93e415b9778a671a
Author: Victor Hugo <hey.zooi@gmail.com>
Date:   Tue Oct 28 12:26:36 2014 -0700

    updating podspec file

commit b53014cb408b79de313aa01b0c19202368e294b8
Author: Victor Hugo <hey.zooi@gmail.com>
Date:   Tue Oct 28 12:26:23 2014 -0700

    creating a separate .h and .m files for the NSFileManager category

commit 5403e14e349bf7bd5bbea68f4454620ddab1806a
Author: Victor Hugo <hey.zooi@gmail.com>
Date:   Tue Oct 28 11:58:16 2014 -0700

    adding methods to compress and decompress using the file system, which keeps the memory consumption always low
Refactoring tests
Bumping version to 1.1.0