Removed unused rime-udp code
Removed all module makefiles. Instead, all .c files in a module directory are compiled.
Moved the ctk files from core/lib into core/lib/ and core/lib/libconio
Moved the custom strncasecmp code into a separate module, since it cannot be compiled on all platforms
Add the explicit list of modules, since we cannot do auto-dependency management of them
Merge pull request #44 from adamdunkels/bold/modularize-everything-no-makefiles

Bold/modularize everything no makefiles