Added compilation of simplest practical case of [string map].
Added compilation of [regsub] (in the simplest, most restricted case).
Compilation of [string first] and [string range] (with constant indices).
Some corrections and performance tweaks
Added [dict exists] compilation; implementation is 95% shared with [dict get].
Dde version number to 1.4.0, ready for Tcl 8.6.0rc1
Added compilation of [dict create] and [dict merge].
Added compilation of [tailcall]. Not a particularly efficient compilation though; it does not detect tailcall-of-self as a special case.
Added more TclOO introspection bytecodes ([info object class], [info object namespace]). Also moved TclOO-in-8.6 to using the main Tcl internal ensemble builder.
Added compilation of [info object isa object] (i.e., object verification).
Added compilation of [string last] and improved the compilation of [string range]. This in turn enables compilation of [namespace qualifiers] and [namespace tail] (also done).
fix Tcl_FSFileAttrStrings doc
Added compilation of [array exists], [array set] and [array unset]. Fixed a whole bunch of issues with opcode issuing that were causing problems with stack depth calculations.
TIP #413
Added bytecode compilation of many Tcl commands, merged from development branch.
merge trunk
Disable bytecompile of [tailcall] until it gets some repair.  As is, it
hopelessly bogs down debug-enabled testing, and make many tests fail.
Release branch for Tcl 8.5.13.
autoconf-2.59
Update changes for 8.5.13.