SDL2 library included
Pharo is not Squeak

This patch replaces some "squeak" to "pharo"
first commit. Safe but maybe not completly refactor needed because my 2.0 image is deprecated.
Merge pull request #62 from JeanBaptisteArnaud/master

first commit. Safe but maybe not completely refactor needed because my 2....
fixed SDL2 library name for mac
Merge branch 'master' of github.com:pharo-project/pharo-vm

Conflicts:
	mc/CMakeLibSDL2.package/CMLibSDL2.class/instance/archiveMD5Sum.st
	mc/CMakeLibSDL2.package/CMLibSDL2.class/instance/downloadURL.st
	mc/CMakeLibSDL2.package/CMLibSDL2.class/instance/setVariables.st
	mc/CMakeLibSDL2.package/CMLibSDL2.class/methodProperties.json
	mc/CMakeLibSDL2.package/CMOSXLibSDL2.class/methodProperties.json
	mc/CMakeLibSDL2.package/CMUnixLibSDL2.class/class/supports..st
	mc/CMakeLibSDL2.package/CMUnixLibSDL2.class/instance/defaultConfigurationFlags.st
	mc/CMakeLibSDL2.package/CMUnixLibSDL2.class/instance/libraryFileName.st
	mc/CMakeLibSDL2.package/CMUnixLibSDL2.class/methodProperties.json
	mc/CMakeLibSDL2.package/CMWin32LibSDL2.class/class/supports..st
	mc/CMakeLibSDL2.package/CMWin32LibSDL2.class/instance/archiveMD5Sum.st
	mc/CMakeLibSDL2.package/CMWin32LibSDL2.class/instance/defaultConfigurationFlags.st
	mc/CMakeLibSDL2.package/CMWin32LibSDL2.class/instance/downloadURL.st
	mc/CMakeLibSDL2.package/CMWin32LibSDL2.class/instance/libraryFileName.st
	mc/CMakeLibSDL2.package/CMWin32LibSDL2.class/methodProperties.json
	mc/CMakeLibSDL2.package/monticello.meta/version
	mc/CMakeVMMaker.package/monticello.meta/version
	mc/ConfigurationOfSpur.package/ConfigurationOfSpur.class/instance/baselineGit..st
	mc/ConfigurationOfSpur.package/ConfigurationOfSpur.class/methodProperties.json
	mc/ConfigurationOfSpur.package/monticello.meta/version
	mc/VMMaker.oscog.package/monticello.meta/version
- OSProcess is part of the default build now
- added AioPlugin to linnux builds