First experiment to make unit tests with Catch library.
First attempt to use travis CI.
Second attempt.
Work in progress for tests.
Events Clone method now return a raw pointer.
Modified travis script.
7za was not installed by the travis script.
Install and compile SFML for travis tests.
Fix and enhanced tests
Fix travis.yml and added clang build
Organized tests and add a memory consumption test for EventsList
Fixed memory leak with EventsList and added test for it
Merge pull request #6 from 4ian/tests

Added basic unit tests for GDCore
Made some scripts more robusts
Added the beginning of the TileMapObject extension.
Can now insert tiles into the map.
First part of the multiple layer support.