Merge pull request #35 from Bonbadil/develop

Add some sports icons, that can be assigned to tracks (TODO: show them on list).
Adding contributors and credits into locales
Adding contributors and credits into locales FR
Adding contributors and credits to Settings View
spelling correction on sports icon(s)
Bug #30 Step 4: Localize new Import form
Merge branch 'develop' of https://github.com/nicodel/Run-Bike-Hike into develop
more space between sports icon display in the edit track form
changing title of Edit a track form
Add icons on the tracks list, change his layout a bit.