Removed ivars from headers.
Added @2x
Removed ivars from headers.  Created static library target.
Merge branch 'master' of https://github.com/waynehartman/Objective-Zip
Added missing headers for static library.
* Include i386 architecture in the static library.

The resulting library will be placed in $(BUILT_PRODUCTS_DIR)/Debug-universal or Release-universal.

The script from the following stack overflow answer has been used: http://stackoverflow.com/a/3647187/346029. The strategy is to compile the _other_ architecture via xcbuild, then combine them both with lipo.

In addition, the path for the public headers has been set to /include (which is relative to the installation directory) so both a "copy headers" phase and the script work. In fact, a "copy headers" phase is now used instead of the "copy files" phase that was used for the same purpose.
Merge remote-tracking branch 'pcuenca/master'

Conflicts:
	Objective-Zip/FDFileInZipInfo.h
	Objective-Zip/FDZipFile.h
	Objective-Zip/FDZipReadStream.h
	Objective-Zip/FDZipWriteStream.h