Update README

Troubleshooting import errors for Python
Enables search on keypress

https://bugzilla.gnome.org/show_bug.cgi?id=721595
Added Aragonese translation
Remove 'Load More' button from artists

https://bugzilla.gnome.org/show_bug.cgi?id=724016
searchbar: the class for searchbars has changed.

https://bugzilla.gnome.org/show_bug.cgi?id=724025
Remove border from playback toolbar

https://bugzilla.gnome.org/show_bug.cgi?id=724027
headerbar: Fix item positions

https://bugzilla.gnome.org/show_bug.cgi?id=721741
Fix PyGI deprecation for positional arguments
Skip special symbols when handling searchbar trigger on type

Partially fixes https://bugzilla.gnome.org/show_bug.cgi?id=723942
Disable Search and Select buttons in No Music view

https://bugzilla.gnome.org/show_bug.cgi?id=708154
Don't draw spinners for albums

https://bugzilla.gnome.org/show_bug.cgi?id=723765
Fix missing Artists list
Redraw view after new pixbuf was added
Skip current track when shuffling tracks

https://bugzilla.gnome.org/show_bug.cgi?id=721297
Updated Ukrainian translation
Updated Assamese translation
Adding Malayalam (ml) Translation
Enable playlists
Make size requests less to fix half-maximized size on most notebooks

https://bugzilla.gnome.org/show_bug.cgi?id=700022
playlist: remove unused _iter