New function Tcl_InitSubsystems, still to be TIP'ed
Implement TCL_INIT_CREATE_UTF8/TCL_INIT_CREATE_UNICODE
merge trunk
Eliminate some unneeded usages of Tcl_SetResult, Tcl_AddObjErrorInfo
Fix "make test-packages" on cygwin
Another memory leak, and one Tcl_Free -> ckfree
merge trunk
merge trunk
doc improvements
merge trunk
merge trunk
merge trunk
merge trunk
merge trunk
merge trunk
Merge trunk. 
Move Tcl_InitSubsystems documentation to its own manpage
Doc improvements. 
Use freeProc field of pseudo interpreter to store the magic value.
merge trunk. 
doc improvements
merge trunk. 
Simplify dummy "interp" struct.
merge trunk. 
Comment improvements, styling.
merge trunk
merge trunk