Added first auxin transport protocol: Auxin upstream pumping.

--
user: Michael Guravage <michael.guravage@cwi.nl>
branch 'default'
added data/leaves/myAuxin.xml
added src/protocols/MyAuxinModel/Makefile
added src/protocols/MyAuxinModel/myauxinmodel.cpp
added src/protocols/MyAuxinModel/myauxinmodel.h
added src/protocols/MyAuxinModel/myauxinmodel.pro
changed src/protocols/Makefile

Added first reaction-diffusion protocol: Diffusion dependent coloring.

--
user: Michael Guravage <michael.guravage@cwi.nl>
branch 'default'
added data/leaves/myleaf.xml
added src/protocols/MyDiffusionModel/Makefile
added src/protocols/MyDiffusionModel/mydiffusionmodel.cpp
added src/protocols/MyDiffusionModel/mydiffusionmodel.h
added src/protocols/MyDiffusionModel/mydiffusionmodel.pro
changed src/protocols/Makefile

Added first tissue growth protocol: The expanding cell.

--
user: Michael Guravage <michael.guravage@cwi.nl>
branch 'default'
added src/protocols/MyGrowthModel/Makefile
added src/protocols/MyGrowthModel/mygrowthmodel.cpp
added src/protocols/MyGrowthModel/mygrowthmodel.h
added src/protocols/MyGrowthModel/mygrowthmodel.pro
changed src/protocols/Makefile

Added first protocol.

--
user: Michael Guravage <michael.guravage@cwi.nl>
branch 'default'
added src/protocols/Makefile
added src/protocols/MyEmptyModel/Makefile
added src/protocols/MyEmptyModel/myemptymodel.cpp
added src/protocols/MyEmptyModel/myemptymodel.h
added src/protocols/MyEmptyModel/myemptymodel.pro