czmq:  fix package version
Abstract package makefiles; enable building out of tree

Move toward minimal package makefiles only containing configuration
variables

This is some pretty messed up code, but it's working for czmq ATM.

Allow a Config.mk makefile to override default configuration.
Variables set here allow builds and chroots outside of the tree and
other things.

Update pbuilderrc for these changes; pbuilderrc is now a template
built for each distro.
Move package makefiles into their own directory

Getting messy in here
Migrate libwebsockets to new format; fixes

- libwebsockets migration
- Disable update-chroot-deps variables, if needed
- Debug formatting
- Fix <package> and <package>-<distro> targets
Migrate jansson; fixes

- Migrate jansson
- Fix binary-indep package build rules
  - FIXME:  This still needs clarificatin
Don't .gitignore /Makefiles/
Migrate pyzmq; pyzmq submodule updates

- Migrate pyzmq
- Unhelpful dh --parallel in debian/rules
Migrate zeromq4
Migrate libsodium; cross-pkg dep fixes; INFO fixes

- Migrate libsodium
- Clean up INFO
  - Setting DEBUG_DEPS prints reasons a target is rebuilt
- Fix dependencies on other package builds
- Minor fixes
Migrate xenomai pkg; fixes for pkgs w/no git submodule

- Migrate xenomai package
  - Fix xenomai package release for MK
- Fixes for packages with no git submodule
- Add debug to czmq
Migrate RTAI; FIXME:  disabled & broken