added llib_cr: encryption/decryption wrapper with AES from PolarSSL
removed old crypto algos, using now PolarSSL (included)
fix use of llib_md in llib_crypt (bad init_ctx)
updated polarssl to 1.3.0; added llib_mutex code
added floating-point functions llib_math in src/math
changed llib_sscan prototypes + fixes in ptokens
added math_double test; fixed double to integers mapping in fdlibm (llib_math)
cleaning
cleaning
fixes in fdlibm
add math.double test from glibc: 98%