Product.rb - fixed base product detection (bnc#876836)

- do not check the product status, always use the product from the initial
  repository during installation
- 3.1.61
added a FIXME note
Merge pull request #244 from yast/base_product_fix

Product.rb - fixed base product detection (bnc#876836)
updated testsuite for the previous fix
Merge pull request #245 from yast/testsuite_update

updated testsuite for the previous fix
removed leading _ from variable name
Merge remote-tracking branch 'upstream/master'

Conflicts:
	package/yast2.changes