remove unnecessary struct names, which only pollute the "struct" namespace for te compiler.
unnecessary hook struct definitions
merge trunk
merge trunk: INST_TAILCALL has bug
Create Tcl 8.6.0 release branch
Declare TclOO portion of the Tcl API to be stable -> TclOO 1.0
merge trunk
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Improve the generation of HTML documentation in 8.6, allowing for contributed
packages whose non-version name parts are prefixes of others. Also ensure that
documentation builds are complete after distribution, and that we generate a
better error message when using the wrong tclsh version to do the build.
update changes