Remove project duplicates.

Project pages were actually in the root directory (and outdated).
The ‘projects’ directory was not used by hakyll (but containing
up-to-date pages).

- Update hakyll rules to compile project pages.
- Remove oudated project pages.

projects/trailr/index.md

@@ -0,0 +1,21 @@
+---
+title: Trailr
+---
+
+[Official website](http://www.ltutech.com/case/trailr/)
+
+Trailr was developed in 2012 during [LTU](http://www.ltutech.com)'s "innovation days"
+when employees are free to work on pet projects.
+
+This was the occasion for us to start using our own image recognition
+technologies.
+
+We pull information about movies each night from
+[TMDb](http://www.themoviedb.org/), put it on our database with all the posters,
+and then do simple requests on our servers via our mobile apps.
+
+I started the project and developed the iPhone app. My coworker (whom I started
+the project with) did all the backend work (data sync, database, server).
+
+At a later stage, another coworker developed an Android app and a chrome
+extension.