Added pictures for the NFN part of the tutorial
Merge branch 'dev-master' of https://github.com/cn-uofbasel/ccn-lite into dev-master
pictures are correctly referenced in tutorial
Merge branch 'dev-master' of github.com:cn-uofbasel/ccn-lite into dev-master

Conflicts:
	doc/tutorial/tutorial.md
Added TOC and some improvements in introduction
Merge branch 'dev-master' of https://github.com/cn-uofbasel/ccn-lite into dev-master
Fix format
Added links to TOC
Merge branch 'dev-master' of https://github.com/cn-uofbasel/ccn-lite into dev-master
Fix bugs in tutorial for ndn
Merge branch 'dev-master' of github.com:cn-uofbasel/ccn-lite into dev-master
Fixed TOC
Merge branch 'dev-master' of https://github.com/cn-uofbasel/ccn-lite into dev-master
rather big patching because of CCNTLV NameSegments always carrying their TL bytes with them
catched more prefix_s allocations, now using ccnl_prefix_new()
Fixed tutorial.md
Fixes in tutorial.md
Merge branch 'dev-master' of github.com:cn-uofbasel/ccn-lite into dev-master

Conflicts:
	doc/tutorial/tutorial.md
Fixes in tutorial
Integrated feedback for tutorial (including updated imgs)