During travis check build gnome-music on Saucy via makecheck
Set correct valign for now playing symbol on artists view

Fixes #142
Merge pull request #163 from roignac/advanced_travis

During travis check build gnome-music on Saucy via makecheck
Merge pull request #153 from roignac/nowplaying_artists

Set correct valign for now playing symbol on artists view
Do model.append() in idle_add to speed up element adding
Use crossfade transition when switching artists
Re-work adding tracks on artists view
Merge pull request #160 from gnome-prototypes-team/add_item_speedup

Add item speedup
Use rtl variants of icons when using RTL languages
Fix a regression that causes a segfault in GTK+ 3.8
Merge pull request #168 from kyoushuu/segfault-regression

Fix a regression that causes a segfault in GTK+ 3.8
Merge pull request #167 from kyoushuu/rtl

Use rtl variants of icons when using RTL languages
Clear model variable instead of defining again
Merge pull request #166 from JacksonIsaac/issue144

fix to issue#144 clone 1 - https://github.com/gnome-prototypes-team/gnome-music/issues/144
Updated Italian translation
view: Cache vadjustment in ViewContainer
Merge pull request #171 from JacksonIsaac/test

view: Cache vadjustment in ViewContainer
Updated Spanish translation
<name> must match the exact repository's name.
Eliminate duplication for _get_remaining_item_count function