Fix bad memory access problems found by Miguel Sofer when valgrinding.
Fix memory leak in [format] compiler.
Add an assertion that checks the stack depth under TCL_COMPILE_DEBUG *before* stack cleanup. It currently triggers at several spots in the testsuite!
adjust stub library version number
adjust stub library version number
adjust stub library version number
fix the new assertion, it should not trigger when an expansion is in progress
merge fork
improved stack checking under TCL_COMPILE_DEBUG
merge trunk