Consistency with other member variable docs
Add missing \see
Move Get to the top of memeber functions for consistency with other classes
Add (failing) test for #22
Store SDL error inside Exception

Fixes #22
Use stock function instead of reimplementing with RWops
Bump version to 0.5.1
Merge branch 'error-handling'

Conflicts:
	SDL2pp/Exception.hh
Bump soversion after abi-incompatible change
Bump soversion after abi-incompatible change
Check for errors after calling SDL_image functions

Fixes #20
Implement wrapper for SDL_image init/deinit

Fixes #21
Display library version during the build
Add note on minimal compiler versions
Merge branch 'sdl_image'
Fix copypasta in documentation
Merge tag '0.5.1'

Conflicts:
	CMakeLists.txt
Fix structure name in documentation
Merge branch 'surface'

Conflicts:
	CMakeLists.txt
Add constructors from existing SDL2 objects