hashOf: float portability fix
replace magic numbers with traits
more tests and comments
Fix Issue 8301 - Access violation when a big array is allocated

Check that adding array padding doesn't cause overflow
hashOf: unable to compute hash of struct instance with toHash method, if this method cannot be called with this instance:
e.g. non-const toHash with const struct object
Merge pull request #675 from IgorStepanov/hashofstructconst

hashOf: unable to compute hash of struct instance with toHash method, if...
Merge pull request #673 from yebblies/issue8301

Issue 8301 - Access violation when a big array is allocated
Merge pull request #672 from IgorStepanov/hashoffix

hashOf: float portability fix
constants for serial port speeds on linux
Merge pull request #671 from mylodon/termios-baudrates

constants for serial port baud rates
fix Issue 11653 - No error when forgetting break with range cases.
Merge pull request #680 from 9rnsr/fix11653

Issue 11653 - No error when forgetting break with range cases.