adjusted stack and buffer sizes to work with MSP430
add sha256 test case
Display the expected SHA256 result as well
add more test strings
change default target for sha256 to native due to wrong result on msba2
Merge pull request #15 from mehlis/sha256

add sha256 test case
Merge pull request #16 from OlegHahm/msb430_test_cc110x

adjusted stack and buffer sizes to work with MSP430
tune default values and add sets target to the Makefile
Merge pull request #18 from mehlis/master

tune default values and add "sets"-target to the Makefile
Fit projects to sixlowpan refactoring