Renamed sha256 functions to comply with new crypto module
Make buffer size a shell property
Merge pull request #70 from haukepetersen/crypto_rename

Renamed sha256 functions to comply with new crypto module
added ltc 4150 test case
Merge pull request #79 from mehlis/test-ltc

added ltc 4150 test case
Merge pull request #77 from authmillenon/shell_property_bufsize

Make buffer size a shell property
add energy mesurement
fix include of crypto