first release

The core and a few asserts:

• .has( subString [, subString2...] ) - Check that any subString present in base.
• .hasNo( subString [, subString2...] ) - Check that any subString unpresent in base.
• .hasNumbers() - Check that any number present in base.
• .hasLettersLatin() - Check that any latin letter present in base.
• .match( regexp [, regexp2...] ) - Check base for matching any regexp.
• .eval( assert ) - Calls function assert with base as only argument. Fails if it returns something.