[feature] Util.is.RegExp + Util.from.String() -> RegExp + RegExp -> Util.to.String()

[cusspvz]

multiple features arround RegExp

• Util.is.RegExp / Util.isnt.RegExp
• Util.from.String() -> RegExp
• RegExp -> Util.to.String()

[cusspvz]

Code useful for Util.from.String():

var match = inputstring.match(new RegExp('^/(.*?)/([gimy]*)$'));
// sanity check here
var regex = new RegExp(match[1], match[2]);

[cusspvz]

#16 will be an advance into this

[cusspvz]

This also needs #17