Clean up test_irq (fix #943)
examples: ccn-lite-client blacklist boards
examples: ccn-lite-relay blacklist boards
Merge pull request #1030 from mehlis/ccnl-blacklist

examples: ccn-lite blacklist boards
Merge pull request #943 from Kijewski/issue-943

Clean up test_irq
native: add help option

Closes: #840
ccnl: find bogus looping content
Merge pull request #1035 from LudwigOrtmann/issue_840

native: add help option
Merge pull request #1036 from mehlis/ccnl-looping-content

ccnl: find bogus looping content
document hwtimer.h WIP
document queue.h WIP