autoreconf.cmd: rename to reconf.cmd

And use 'autoreconf' instead of 'autoreconf.'.

    renamed:    autoreconf.cmd -> reconf.cmd
gmake.cmd: save and restore IFS

    modified:   buildscripts/autotools/gmake.cmd
qtenv.cmd: allow to specify Qt dir

    modified:   buildenv/qtenv.cmd
sp.cmd: use environmental variable for mail address

    modified:   git/sp.cmd
tcppr.ndx: fix connect is not linked to connect()

    modified:   tcppr.ndx
pack.cmd: improve packaging

1. use setlocal/endlocal to prevent from corrupting env vars
2. remove debugging symbol
3. automate versioning of hobbes upload template

    new file:   name.cmd
    modified:   pack.cmd
gitimp.cmd: copy .gitignore from checked-out sources if possible

    modified:   gitimp.cmd