ObjFW  Check-in [3f91c686ff]

Legend:
 * Changes of existing features or bugfixes.
 + New features.

ObjFW 0.1.2 -> 0.2, 01.02.2010
 + Support for ObjC 2 Fast Enumerations on every platform which has
   compiler support for fast enumerations.
 + Support for ObjC 2 properties on every platform with compiler support.
 + Fast Enumeration through arrays and dictionaries.
 * OFIterator has been removed.
 + OFEnumerator was added to replace OFIterator, which is more general
   and works with arrays and dictionaries.
 + Portable implementation for atomic operations.
 + Portable implementation for spinlocks. They use atomic operations if
   available, if not they fall back to pthread spinlocks. If both are
   unavailable, mutexes are used as a last fallback.
 * -[retain] and -[release] are now atomic. If no atomic operations are
   available, spinlocks are used (which can fall back to mutexes, see
   above).
 * -[readLine] now handles \r\n without having the \r included in the
   returned line.
 + OFThread now has -[tryLock].
 * Mutation methods have been removed from immutable interfaces, thus
   already giving an error at compilation instead of at runtime.
 * Dependencies between headers have been reduced, leading to faster
   compile times.
 * The interfaces of OFSocket and OFStream were cleaned up and some
   methods were moved to OFTCPSocket, as they make sense only there.
 * File methods unavailable on Windows don't throw an exception at
   runtime anymore, but instead are not even in the interface on
   Windows. This way, it is a compile time error instead of a runtime
   error.

ObjFW 0.1.1 -> 0.1.2, 15.01.2010
 * Fix a bug in OFMutableArray's -[removeObject:] and
   -[removeObjectIdenticalTo:] that could lead to not removing all
   occurrences of the object from the array and to out of bounds reads.
 * Change the URL in the framework plist to the homepage.

ObjFW 0.1 -> 0.1.1, 04.01.2010