functions in fetch according to naming convention
Merge branch 'ccntlv' of https://github.com/cn-uofbasel/ccn-lite into ccntlv
Merge branch 'ccntlv' of https://github.com/cn-uofbasel/ccn-lite into ccntlv
fixed: fill interset for fetch/mkI
fixed uninitialized warnings when compiling with clang