include source files up to three levels deep for the compilation
added starters/ folder including a first CommandData example and a registration function for all plugins in the starter/ folder called Register_Starters()
added REGISTER macro to starters.cpp, added group-objects.cpp to starters/commands/, updated file header of create-cube.cpp
updated copyright notice
added File Header section
added README for starters module
updated file headers of existing files. added commands/iter-hierarchy.cpp example and registered in starters.cpp
updated README. added commands/spheres-on-points.cpp example. changed register function name scheme.
updated file header copyright
Merge pull request #1 from PluginCafe/starters/commands

updated file header copyright
updated README
updated file headers
fixed undo-behavior of Group Objects command
Update README.md
Update README.md
renamed original Plugin ID identifier to 'PLUGIN_ID'. since it is static, it won't mess with other object files
Merge branch 'master' of github.com:PluginCafe/cpp-cinema4dsdk
Update README.md

Information about c4dmake, that it is not officially supported.
Update README.md
the name of c4d-make has changed to c4dmake, adjusted readme and project files path