Initial work on 2D test
Working SFGUI HelloWorld example

Both static and dynamic compilation are working (no test using BlueMars
as a library for now)
Make Travis try to build SFGUI Example
Merge branch 'master'
Merge branch 'master'
Removed dllimport declaration when building static library for windows
Added dll export for Noise

Need for shared lib compilation
Added possibility to get a chunk by its coordinate and the default chunkSize
Changed simpleAdditionLayer to give something between 0 and 1

- Break unittests because values changed, need to rethink the unittests
for this
Added convertion to TGA from chunk

Then SFML (SFGUI) will easily be able to load a tga
Included math.h

For round() definition
Working example of simpleAdditionLayer display
Added a new SFGUI window for layer (detect mouse scroll)

Nothing is displayed yet
Better scrolling
Scrollable implementation of layer view
Changed values for unittests
Fixed warnings

Mainly implicit conversions
Merge remote-tracking branch 'origin/master' into 2d-gui
Fixed origin to top left corner instead of bottom right (TGA-related)
Merge remote-tracking branch 'origin/master' into 2d-gui