initialize random module
Merge branch 'master' into random
minor fixes of file preambles
Merge branch 'master' into random
stream_tracker tested
SFMT partly verified
SFMT stream tested
improved tests on SFMT passed
modification of SFMT interface (tested)
add several PRNG (not tested)
Merge branch 'master' into random
more distributions (not tested yet)
merged with master
more files added
more files added
Merge branch 'master' into random
basic discrete distributions (tested)
uniform_real tested
exponential distribution (tested)
merged with master and tested under new framework