v1.3.4-RC1: mail and sync fixes

New features

• #178 - automatically sync project quota on instance created, resized or removed
• #180 - ability to rename an instance
• #189 - migrate Debian packages to Ubuntu 16.04 and systemd
• #207 - create cluster installer

Improvements

• #190 - ability to filter images by project
• #200 - send mail when instance state is set to error

Fixes

• #165 - issue with project sync
• #183 - invalid processing of command arguments with spaces
• #201 - NPE in operation checking logic