- cleanup some old php 5.6 fixes

- added move validation for powMod
- changed naming and params to be more in self explaining (breaking changes!)
- code optimisation

Author: krowinski

README.md

@@ -49,7 +49,7 @@ Features
         - bitAnd
 - proxy for original functions (http://php.net/manual/en/book.bc.php)
 - all functions supports scientific notation
-- all functions are static so it can be easy replaced by this lib
+- all functions are static, so it can be easy replaced by this lib
 
 Info
 ===