Added new RSpec test for Linuxrc
Rebased on updated master
Updated according comments

- nested "describe"
- unified if "does something"
Test file renamed according to comments
Used more informative test description
Refactoring NetworkInterfaces helpers for parsing ifcfg device names.

These helpers are partialy incompatible with new naming scheme.
Fixed comments.
Fixed deleting alias assigned to device with new style name. bnc#846550
Removed some YCP -> Ruby artifacts
Updated changelog
Created rspec test for NetworkInterfaces ifcfg device name helpers

Purpose is mainly to cover current state regarding old even new
naming scheme.
Merge pull request #120 from mchf/bnc846550-deleting-aliases

NetworkInterfaces: Make handling aliases compatible with new naming scheme
Extended tests
Fixed test description
Updated gitignore
Removed unreferenced NetworkInterfaces#HasAliases
Changing wildcard to listing all files
Merge pull request #123 from kobliha/linuxrc_extension

Added new RSpec test for Linuxrc
Added Linuxrc.keys method

- Needed for FATE#314982
Added changes file entry + new version 3.1.1