Added "forward" to y_hooks/tests.inc and comment to y_malloc/heapalloc.inc
Added "strcmp" compiler fix.
Changed to using "P:I" not "P:0".
Added "PHP:" function tag macro.
New tests for y_bintree.  First version of y_hashmap.
Removed old code.
HashMap_RemoveKey
Fixed a comment.
Added header comments.
Inlined HashMap_Hash.
New tests (now up to 4815).