RPM building framework into develop

This is based on the work previously done in the release/0.1 branch. Although in the PR the files are shown as new (as, actually, they are from the point of view of develop branch) in order to see the changes since release/0.1 you can see directly commit 8077292, which basically are:

* Patching the libthrifth library (according to README.md instructions)
* Using plugin.d to install Cygnus
* Better error messages if Cygnus copy fails