v3.0-alpha6

New alpha release. Mainly bugfixes and minor improvements to user experience. Introducing block/unblock user!

Changes:

• #167: shorter sync time
• #165: user preference to accept any certificate from servers
• #141: offline decryption
• #134: block/unblock user

Fixes:

• #168: images are sometimes not sent correctly
• #156: ComposeMessage activity is now configured with standard launch mode
• #153: internal trust store for SSL certificate verification
• #148: restarting registration activity fires a "Generating key pair" toast
• #144: encrypt content from/to unknown contacts
• #143: battery draining improvements
• #142: chat invitation thread disappears when returning from conversation
• #136: use _id instead of timestamp for sorting messages
• #126: better reconnection policy
• #154: released apk still with debug mode on

Download apk here: https://kontalk.raunz.name/files/Kontalk-3.0a6.apk