TODO

version 1.4:
	- DONE: check for the effect of altering tables -> bugs seem to be fixed
	- DONE: testing the querying for events 
	- DONE: writing unit tests to ensure that the data returned from the events is properly preserved
	- NO SIDE EFFECT KNOWN: testing if server_time and client_time name changes have had any side effect
	- DONE: testing if adding StringUnescapeUtil to the Statement manager has had any side effects
	- DONE: testing the servlet
	- DONE: specifying the order of appearance for the parameters when querying the servlet
	- DONE: modifying the queries for the events. right now the queries are really bad.

	issues:
		- How to specify the last events without knowing the start time. ANSWER: If start is not specified, it means "now". 
		  so defining the "querySize" for the query equals to specifying "beforeE" without a "start" parameter.