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
The above block achieves libthrift replacement. Result:

```
[fermin@centollo rpm]$ rpm -qlp RPMS/x86_64/cygnus-0.3-28.ga79973a.x86_64.rpm  | grep libth
/usr/cygnus/lib/libthrift-0.9.1.jar
```

NTC (just informative)