Add ccn_put_file
ccn-lite-put sets now the correct ccn-prefix
ccn-lite-put bugfix
Add sign method to ccn-lite-put
Add verify method to put, this method must be moved to the place where verification take place
Add unix socket to ccn-lite-put
Split creating an content object and adding a content object (not yet implemented) to relay in to different commands.
ccn-lite-put sends correct ctrl packets
Extract contentobj from add to cache msg
Add verify function to ext-mgmt. Need to adjust Makefile.
Verification of new content objects works correct.
Adding content to cache works correct with ux-socket and public/private key certification.
Fix some memory leaks
Add function for content-remove, but not implemented
Merge branch 'master' into ccn_lite_put

Conflicts:
	Makefile
	ccnl.h
	util/Makefile
	util/ccn-lite-ctrl.c
Merge branch 'master' into ccn_lite_put
Implemented the remove content in ccn-lite-put with signature
Change signature strategie, sign the whole content deliverd with the interests.
Add simple reply in textform
Implement CCN-Paket answer for ccn-lite-put.
Signatures are not available yet