Recognize EMF images
DOCX Input: Do not fail if the firs image is an EMF image

Fixes #1224849 [DOCX to EPUB conversion failed with devide by zero](https://bugs.launchpad.net/calibre/+bug/1224849)
Remove unused code
Il Cambiamento by ghib9
DOCX Input: Add support for EMF images

DOCX Input: Add support for embedded EMF images that are just wrappers
around an actual raster image. See #1224849 (DOCX to EPUB conversion failed with devide by zero)
...
Show full path of library in status bar

Show full path of library under mouse in status bar when
switching/renaming/deleting libraries via the calibre library button.
Fixes #1224925 [[Enhancement]Show full path for libraries](https://bugs.launchpad.net/calibre/+bug/1224925)
...
Ignore errors in third party UI plugins during genesis
In the comments editor, permit insertion of references to images on the 'net (<img ...>) as well as links (<a ...>).
Comments editor: Allow treating arbitrary URLs as images

Merge branch 'master' of https://github.com/cbhaley/calibre
Allow colons in identifier values

Fixes #1224885 [<dc:identifier opf:scheme="URI"> and semicolon #2](https://bugs.launchpad.net/calibre/+bug/1224885)
Update Politika
Fix #1225552 [Windows portable executable file description should be "Calibre"](https://bugs.launchpad.net/calibre/+bug/1225552)
Book list should track edit metadata dialog

Fix regression in 1.3 that caused the book list to not track the
ecurrent book when using Next/Previous in the edit metadata dialog.
Fix #1225499 [non translatable "completed" for completed jobs](https://bugs.launchpad.net/calibre/+bug/1225499)
Have metadata.book.set_all_user_metadata actually set the metadata, not merge it.
Merge pull request #84 from cbhaley/master

Have metadata.book.set_all_user_metadata actually set the metadata, not ...
Conversion: Handle shorthand CSS properties

Conversion: Fix bugs in the handling of shorthand CSS properties
such as font or border, which could cause some properties to
not be resolved correctly during conversion.
...