Rake task update

Added tag filters to the rake tasks for running tests so that unfinished
tests and tests that need to be temporarily turned off do not result in
failing tests runs.
Bug Fix

Fixed a bug that was throwing away empty lines at the end of doc
strings.
Merge branch 'doc_string_fix' into dev
Version bump

Gem version bumped for v1.4.1 release.
History update

Updating gem history in preparation for v1.4.1 release.
Readme update

Added links to other projects that use cucumber_analytics.
Merge branch 'dev'