add MD5_DIGEST_SZ to NO_MD5 for non no-old-tls build types that still need it
tls: refactoring p_hash to reduce stack usage:
--- variable previous moved to the heap (up to 48 bytes saved)
--- variable current moved to the heap (up to 48 bytes saved)
--- variable hmac moved to the heap (sizeof(Hmac) bytes saved)
tls: refactoring doPRF to reduce stack usage:
--- variable md5_hash moved to the heap (up to 256 bytes saved)
--- variable sha_hash moved to the heap (up to 256 bytes saved)
--- variable labelSeed moved to the heap (up to 128 bytes saved)
--- variable md5_result moved to the heap (up to 224 bytes saved)
--- variable sha_result moved to the heap (up to 224 bytes saved)

tls: refactoring PRF to reduce stack usage:
--- variable labelSeed moved to the heap (up to 128 bytes saved)
tls: refactoring DeriveTlsKeys to reduce stack usage:
--- variable seed moved to the heap (up to 64 bytes saved)
--- variable key_data moved to the heap (up to 224 bytes saved)
tls: refactoring MakeTlsMasterSecret to reduce stack usage:
--- variable seed moved to the heap (up to 64 bytes saved)
tls: refactoring CyaSSL_make_eap_keys to reduce stack usage:
--- variable seed moved to the heap (up to 64 bytes saved)
keys: refactoring DeriveKeys to reduce stack usage:
--- variable shaOutput moved to the heap (20 bytes saved)
--- variable md5Input moved to the heap (68 bytes saved)
--- variable shaInput moved to the heap (119 bytes saved)
--- variable keyData moved to the heap (112 bytes saved)
--- variable md5 moved to the heap (sizeof(Md5) saved)
--- variable sha moved to the heap (sizeof(Sha) saved)
fix digest sizes in internal.h
vagrant recipe to get a linux machine for testing.

The virtual machine is provided by hashicorp (the company that makes vagrant) and is an Ubuntu Precise 64

The provisioning script that runs in the first boot of the machine will copy and setup a synchronize script so you don't have to run ./autogen.sh and ./configure every time to build in a different OS and you can also build and run on both (guest and host) at the same time.

The ./pull_to_vagrant.sh script should be called at least once before building cyassl so you get all the changes from you host machine.
keys: fixing DeriveKeys:
--- variables md5InputSz, shaInputSz and keyDataSz removed

keys: refactoring MakeSslMasterSecret to reduce stack usage:
--- variable shaOutput moved to the heap (20 bytes saved)
--- variable md5Input moved to the heap (532 bytes saved)
--- variable shaInput moved to the heap (579 bytes saved)
--- variable md5 moved to the heap (sizeof(Md5) saved)
--- variable sha moved to the heap (sizeof(Sha) saved)