Merge pull request #1 from larsbutler/master

Updated a (broken) url to another version of zlib
implemented ZVM_PREFIX handling, better suited for existing builds
Removed zvsh.py

Now it's in separate repository. This version is outdated and shouldn't be used anymore.
See zerovm/zerovm-cli repo at github.
Added Tcl port.

Added tcl port from original source code. Focusing on 8.5 version.
There is NaTcl project which is also port of tcl, ignoring it for now.
Merge pull request #2 from rampage644/master

Adding tcl port, removing outdated zvsh.py
added openssl port
fix some defaults

- tar xf instead of xvf, just less clobber
- "make install" instead of "sudo make install" for convinience
fix libxml2 install

removed python bindings, not needed, zpython is compiled statically anyway
added port of imagemagick
Added `libexpat` compile howto
Added README for `prce` port
Fixed `zvsh` invocation from testing script

Changed relative path to "global", will need `zvsh` to be available
through `PATH`.
Merge pull request #3 from rampage644/dev

Fixes for pcre, added libexpat
Added `libiconv`
Merge pull request #4 from rampage644/dev

Added `libiconv`
`busybox` added

Preconfigured `.config` file is provided. Not tested via `testsuite/`.
Merge pull request #5 from rampage644/dev

`busybox` added
Added `libav`
Added `libogg`
Added `libvorbis`