Bump to 8.5.17
update changes file
merge 8.5; update changes
missed bump bits
merge 8.5
[280089486e] Remove damaging effects of font.test.  Thanks to fvogel.
Fix for Mac crash on Yosemite because of changes in version checking
Restore the use of -DTCL_NO_DEPRECATED when building Tk.
Without this, attempts to build with the latest Xcode tools fail because
of a conflict between the long (long long long long) deprecated macro
panic() from Tcl's header and a panic() prototype in the system mach.h file,
which rides into the build on the tails of Cocoa.h
merge 8.5
merge release
merge mark