small lib/ refactoring
handle pkg-bindings errors
move SW management functions to separate file

(to lib/registration/sw_mgmt.rb)
move language function to a separate file
use WFM.GetLanguage for getting the current language

(removed yast2-country dependency)
update Makefile.am
rename "selected_base_products" -> "products_to_register"

to better match the functionality
import fixes
added missing textdomain
changes

- 3.1.13
code review fixes
Merge pull request #19 from yast/check_pkg_errors

Check pkg errors
allow changing the registration server URL in installation

via  boot command line ("reg_url" option) (FATE#312433)

- 3.1.14
Merge pull request #20 from yast/custom_url

allow changing the registration server URL in installation
add SLP service discovery support (FATE#316384)
move some code from client to lib

for better testing
test discover_registration_services.rb client
changes

- 3.1.15
Merge pull request #21 from yast/slp

Add SLP discovery for using a local registration server
fixed crash at start (added missing "require" call) (bnc#867120)

- 3.1.16