Better reconnect functionality, bug fixes

d80ddca pass Enter event otherwise crash
1f634f5 remove unnecessary check
f78d673 add "reconnect now" option
a5d405b add handling of onAutoreconnectIteration
405ce75 allow avatar removal
9b3c714 js2016 changes
2e76b12 keep focus on message editing firld whenever possible
14d7522 remove debug logging
bc3e82b bug fixes: crash in editing group member permissions, fnd not working sometimes, var -> let, const