Updates to field group JS

Signed-off-by: Elliot Condon <e@elliotcondon.com>
Language: Added Russian translation - Thanks to Alex Torscho

Signed-off-by: Elliot Condon <e@elliotcondon.com>
grammer

Signed-off-by: Elliot Condon <e@elliotcondon.com>
Merge branch 'master' of https://github.com/elliotcondon/acf