[#58499594] Added the possibility to use multiply JSON library
removed oj from gemspec and add it to Gemfile
moved gem_available method to Lims::Core namespace
Merge pull request #199 from ke4/58499594_add_multiply_json_implementation

[#58499594] Added the possibility to use multiply JSON library
Put to_json and load_json in Helpers module + fixes
Bump version
Require jrjackson gem for jruby env
Merge pull request #200 from llh1/automatically_choose_json_gem

Automatically choose json gem
Merge remote-tracking branch 'sanger/development' into 58500284_merge_uat_and_v3

Conflicts:
	Gemfile.lock
	lib/lims-core/version.rb