cc1100-csmaca-mac.c: fix usage of timex_t
flowcontrol.c: fix usage of timex_t
lowpan.c: fix usage of timex_t
destiny.c: fix usage of timex_t
tcp_timer.c: fix usage of timex_t
socket.c: fix usage of timex_t
added timex_isnormalized
size of msg_queue must be power of two
Merge pull request #489 from OlegHahm/rpl_msg_queue

size of msg_queue must be power of two
Merge pull request #364 from OlegHahm/float_stack_sizes

added a dedicated stacksize for float printfs
Merge pull request #483 from mehlis/master

fix some findings by the static analyser
Merge pull request #456 from mehlis/fix-ping

Fix ping
Merge pull request #479 from LudwigOrtmann/nativenet_lenchck

Nativenet length check and cleanup
Merge pull request #484 from OlegHahm/import_projects

Importing some examples from projects repository
unsilence link,size,objcopy
imported test projects (from projects repository)
Merge pull request #492 from LudwigOrtmann/unsilence

unsilence link, size, objcopy
prefixing application object files to avoid dups
ccnl: data is not a string
ccnl: added 'content is dup' debug message