version 0.3.2
- added 2 new types SHMAP_TYPE_FIFO and SHMAP_TYPE_BTREE
- added new function shmap_free_resource. This is meant for use with SHMAP_TYPE_FIFO. See docs.

version 0.3.1
- functions are no longer called using theyr address space, but theyr order in the __shmap_modules array.
        different processes may have different address space but they are using they same library
- shmap_add increased the element count only, when we replaced a value in map for type_ll. Should be vice versa. Fixed.
- ipc semaphore lock are now also removed, after map is disposed


version 0.3
- added possibility to attach to an existing external shared memory (requires libmm patch)
- internal structure changed. all values are now shmap_value type
- shmap_init now only takes one argument - shmap_opts type
- new functions: shmap_lock_init, shmap_lock_get, shmap_lock_set, shmap_lock_del, shmap_lock_dispose,
        shmap_dolock, shmap_unlock
- added also the shmap_opts_* functions

version 0.2
- fixed a crash bug with shmap_clear

version 0.9.1:
- first development release
- shmap_del is renamed to shmap_clear
- shmap_init has new interface
- lots of code is added and some API has changed
- possibility to choose between linked list and array type
- huuh ... don't remember all of it
- many changes


version 0.1:
- initial release of shmap library.
- only possible type is linked list