Merge pull request #44 from iggycoder/master

zipping folders
fixed bug: writeFileAtPath now notice the file date
Merge pull request #51 from carlj/master

Notice file date when save file
Fix NSFileManager leak when building without ARC
Fix warning with -Wmissing-braces enabled
Fix warning with -Widiomatic-parentheses enabled
Merge pull request #53 from randomsequence/master

Fix NSFileManager leak when building without ARC
wrapped main loop in @autorelease pool

Massively reduces the memory overhead whilst unzipping
Fix for file creation date + tests
Adds support for maintaining file permissions when compressing and decompressing
Added tests for compressing and uncompressing files with permissions
Added a check to make sure 0 permissions are not set
Version 0.2.4
Merge pull request #65 from nibroc/master

Added check to ensure permissions are not explicitly set if they do not exist in the zip
Caching Gregorian NSCalendar for performance.

This was taking about 30% of the time unzipping on an iPhone 5.
Merge pull request #67 from ChristopherRogers/master

NSCalendar caching
Adding missing ";".

Fixes syntax error.
Merge pull request #68 from marcelofabri/master

Fixing compilation error (missing ";")
Version 0.2.5