Conversion: Fix incorrect CSS being generated when converting files that have <img> tags with width or height attributes that contain fractional numbers. Fixes #1283108 [Private bug](https://bugs.launchpad.net/calibre/+bug/1283108)
EPUB Output: If the output profile is set to one of the Nook profiles, do not use shorthand CSS properties as the Nook cannot handle them.
Linux binary build: Create an uninstall script named calibre-uninstall

Fixes #1283154 [linux uninstaller (/usr/bin/calibre-uninstall)](https://bugs.launchpad.net/calibre/+bug/1283154)
Clean up error handling in the linux installer
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Show an error message if the user tries to edit books on the device instead of editing the last selected book in the library
E-book viewer: When displaying metadata for the book, also display custom column metadata
Workaround for bug in xgettext

https://savannah.gnu.org/bugs/index.php?41668
Update Le Temps

http://www.mobileread.com/forums/showthread.php?t=232489
Add test for ssl module being importable
Utility code to download https URLs securely
When downloading recipes/get books plugins use HTTPS
Use the TLSv1 SSL protocol version by default
Add support for HTTP proxies to the HTTPS fetcher
Py3 compat for https downloader
Move the linux installer download script into the calibre source tree
Edit book: Fix option to disable showing the character before cursor not working
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Fix Bug #1268118: epub converted produces invalid .rtf file
Fix amazon store plugins not showing cover.