Merge pull request #36 from Halsys/master

sfText_getGlobalBounds && remove reference from time comparison
Add mapPixelToCoords and mapCoordsToPixel to RenderWindow

Added the mapPixelToCoords and mapCoordsToPixel functions to
RenderWindow.
Merge pull request #37 from MattUK/master

Add mapPixelToCoords and mapCoordsToPixel to RenderWindow
Fixed formatting, added move to View

Fixed formatting from previous commit, added 'move' function to View
class.
Vector2 now defaults to the origin
Merge pull request #38 from MattUK/master

Fixed formatting, added move to View
Merge pull request #2 from Jebbs/master

Jul 19 > 20