add support for non-sorted lists in cxListInsertUnique() and cxListInsertUniqueArray()

make cxCollectionSorted() always return true for empty collections regardless of the sorted flag

clean up header files and adds support for comparing arbitrary strings with string.h functions

remove unnecessary members from the array reallocator struct - fixes #621

fixes tons of typos and grammar issues across the documentation - fixes #667

fixes various bugs related to skipping duplicates in insert_unique - relates to #557

changes the compare function wrapper for pointer lists so that it no longer invokes the actual compare function for NULL pointers

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mercurial