Fixed NetKAN so it can now find its cache again.
Build system: Windows compatibility fixes.

We now use File::Copy::Recursive under windows to clone
our files.
Added basic tests for CKAN.Repo

This involves a change to CKAN.Repo's internals so that it can
populate a registry without needing to save it.
Implemented AvailableModule.Remove and Registry.Remove, and more tests!

Hooray tests. :)
Fixed bug where we could try to construct a Url from null.

This doesn't have a test case. I am so sorry.
Added RealChute to the Bootkan.

Tested and works! <3
Implement and test RemoveAvailable(Module module)

This is simply a shortcut to the main RemoveAvailable() that does
all the heavy lifting.

Tests included.
CmdLine: Allow installation of files from CKAN files.

`ckan install -c YourMod.ckan`

This inserts the described mod into the registry, and then installs
as per normal. If that mod was indexed from upstream, the relevant
version (and only that version) will be replaced by the one
described in the file.

This does not roll-back the meta-data insertion if the user chooses
not to install the mod. As a dev tool option, I'm not stressed by
this.

Closes #128.
Merge branch 'fix_netkan' into 128_install_from_cmdline

* fix_netkan:
  Fixed NetKAN so it can now find its cache again.
Run Application when we really sure.

Fixes Exception if KSP select dialog is closed.
Fix default instance selection.
Merge pull request #164 from ROMB/Fixes_for_instance_selection

Fixes for instance selection
Merge pull request #163 from pjf/128_install_from_cmdline

Allow installation of CKAN files from cmdline.
Merge pull request #154 from pjf/fix_windows_build

Build system: Windows compatibility fixes.
Merge pull request #162 from pjf/bootkan_realchute

Added RealChute to the BootKAN.