Merge pull request #154 from zlamalp/url

GUI: use URL.encode() on GET call parameters
Merge pull request #158 from stavamichal/fix-update-group-method

Fix updateGroup ,method
All changes from 'master' to 'production'
GUI: fixed typo in production properties file
Merge pull request #183 from zlamalp/fixup

GUI: fixed typo in production properties file