Log Message:
Update jimtcl from 0.76 to 0.77

Local changes:
 - add test target
 - build and install optional modules (right now: oo, tree, binary,
   readline, rlprompt, mk, tclprefix, sqlite3, zlib, win32)
 - install shared library
 - simplify usage of the GitHub framework
 - use --docdir instead of the SUBST framework

Upstream changelog
==================
CHANGES SINCE VERSION 0.76

This release contains some bug fixes plus a number of additional features. A \ 
summary is below. See git for the full changelog.

Thanks to everyone who contributed to this release.

Bugs fixed in version 0.77

    exec - better handline of pipeline abnormal termination
    exec - fix append redirection on Windows
    regsub - fix substitution with trailing backslash
    expr - improved mathfunc handling and pow/**
    chained tailcalls were not always being run

Features added in version 0.77

    Add support for configure --docdir=...
    Add support for jimsh --help
    Add support for booleans in string is and expressions (true, false, on, off, \ 
yes, no)
    aio - add sync, openssl bindings, posix locking
    expr - add support for atan2, hypot and fmod
    regexp, regsub:
        Add support for \D, \W and \S
        Add partial support for \A, \Z
        Add support for all character classes: [[::blank:]], [[::xdigit::]], etc.
    Update included sqlite3 to v3.14.1
    Add $tcl_platform(engine)
    Add basic (optional) zlib support
    Add interp child interprester support
    oo:
        Add support for constructor, runs on new object creation
        Add support for unknown method
    Add Travis and AppVeyor continuous integration support
    Use pkg-config in configure to find packages if possibe

Steve Bennett (steveb@workware.net.au)

  -- http://jim.tcl.tk/fossil/doc/www/www/news/