Backport new version to p8 branch.
Revert fix file globbing in testrb to prevent mass failures of Ruby package build.
Pass requirements without %add_ruby_req_skip use.

Require ruby-tool-setup used in macros.
ruby-tool-setup requires git-core so remove git requirements from rpm-build-ruby.
Fix small typo in description.

add git as a requirement fror successful git imported modules build

Add macro %add_ruby_req_skip module... to exclude ruby(module) from generated requirements.
Add %rubygem_specdir macro for Ruby gem specification directory.

Fix file globbing in testrb.

Backport new version to p8 branch

ruby.req.files: parse file output case insensitive because now

exclude Ruby version from %ruby_sitearchdir provided pathes
force newline to Ruby files to prevent output without newline ended

filter hash from provides

NMU: added rpm-macros-ruby

Skip include in dependencies search

Added provides based on "load" in addition to "require"

Support requires defined in double quotes in addition to single quotes

Requires check changed to bash script instead of ruby

Removed dependency to obsolete rubynodes checks

Set to catch any errors and notice them: %_ruby_req_method strict.