Call SecCopyErrorMessageString to provide a description for NSError objects
Fix bug where items sometimes aren't deleted on Mac OS

Issue discussed here:
https://github.com/soffes/sskeychain/issues/11

Use SecItemCopyMatching and SecKeychainItemDelete instead of SecItemDelete to work around it.
Merge pull request #15 from noa--/pullreq2

Fix bug where items sometimes aren't deleted on Mac OS
Add underscore to private method
Add tests and move files into source folder
Move changelog to https://github.com/soffes/sskeychain/wiki/Changelog
Bump license year
Add Gemfile *sigh*
Run bundle install on CI before running
Support Ruby 1.8
Add Test schemes
Merge branch 'master' of git://github.com/soffes/sskeychain into pullreq1
Replace remaining instances of noErr with errSecSuccess
Check for nil before inserting message in dictionary
Merge pull request #14 from noa--/pullreq1

Call SecCopyErrorMessageString to provide a description for NSError objects
Restore iOS support to deletePassword… and add iOS support to _errorWithCode

SecKeychainItemDelete and SecCopyErrorMessageString are Mac-only.

Also fixes a compiler error on non-ARC Mac.

Removed unused SSKeychainErrorNoPassword.

Removed platform-defined values from SSKeychainErrorCode enum. The list is misleading on Mac OS since the actual list is much longer, and it seems unnecessary on iOS since _errorWithCode: generates the descriptions and the constants are documented in SecBase.h.
Merge pull request #18 from noa--/pullreq4

Restore iOS support to deletePassword… and add iOS support to _errorWithCode
Version 0.2.0
Fix podspec
Fix podspec