initial support for the mbed NXP LPC168

 * http://mbed.org/platforms/mbed-LPC1768/
added a dedicated stacksize for float printfs
Initial import of crypto libs from SecureMicroMesh

- Imported files from secure micro mesh library
- added Makefiles and included libs into sys/Makefile
Removed deprecated asserts from 3des and aes
Removed some redundant \0 string terminators
introduce CPU name macro via CFLAG
fix check for used cpu in arm_common
making include directives consistent
Merge pull request #451 from OlegHahm/mc1322x_check

Fixes check for Mc1322x  CPU in arm_common
fix: vtimer_now should return seconds and microseconds
added comments and debug
resort function call and debug output
Merge pull request #429 from mehlis/vtimer-fixes

Vtimer fixes (only debug and comments)
add telosb include inside telosb
fixes Makefiles for mbed_lpc1768 board
model ltc4150 dependency in msba2-common Makefile
Merge pull request #454 from LudwigOrtmann/msba2ltcdep

model ltc4150 dependency in msba2-common Makefile
Merge pull request #437 from OlegHahm/include_directives

making include directives consistent
removed useless code
rename variables to match the guidelines (use module prefix)