Add usb ids for Motorola Milestone X2. Fixes #1343704 [Failure to detect Motorola Milestone X2](https://bugs.launchpad.net/calibre/+bug/1343704)
Linux binary: Do not fail on system with invalid locale info. Instead default to using the UTF-8 encoding on these systems. Fixes #1343444 [calibre crash with utf_8_valencia](https://bugs.launchpad.net/calibre/+bug/1343444)
version 1.45.0