reverted to jQuery 2.1.3 in Gemfile to fix url-with-id problem in 1.9.1; removed instruction to delete Gemfile.lock from readme.txt; tidied some language test file/folder names
refactored jquery .attr('value') to .val() ready for future jquery update
minor refactoring
removed fixed bug description from issues.txt
Merge remote-tracking branch 'upstream/master'