Cpsk datematch

* Plugin is now able to also match date when user specifies it in query. For instance `10.12.2014 bus z TO do BA`
* Also added more examples
* Don't throw exception when there are no results, rather return "Nothing found"

This closes #29 
this is that if you specify date, you are probably going to specify time as well. Being noobish in regexes, I haven't been able to fix it. Is there a way that if user doesn't specify time, date will not be represented as a time string?