Merge pull request Criptext#236 from Hirobreak/participants

Updating methods and fixes

Merge pull request Criptext#228 from Hirobreak/register

fix register for notification

Merge pull request Criptext#222 from Hirobreak/2fa

Two-factor Auth

Merge pull request Criptext#214 from Hirobreak/linking2

Linking Stage 2

Merge pull request Criptext#213 from Hirobreak/night1

add criptext footer, share with a friend

Merge pull request Criptext#209 from Hirobreak/header

Security Alert title change

Sync improvements across platforms

Merge pull request Criptext#192 from Hirobreak/clean

fix email body sanitizer

Merge pull request Criptext#179 from Hirobreak/apiheader

Contacts, API Header and more

Merge pull request Criptext#166 from Hirobreak/1.0.4

small fix in contact list, bump version