-incftr
template: ster?clnt=<name|pass>&com=incftr&str=<str>&ftr1=dgr1&ftr2=dgr2...
          Order of query params is not important:
descript: For the stereotype <str> increases all features (ftr1, ftr2...)
	  by the corresponding degrees (dgr1, dgr2...). If a feature didn't exist
	  in the stereotype it is added using the corresponding degree as the default.
example : ter?clnt=<name|pass>&com=incftr&str=testStr.1&ftr.1=15&ftr.test.5=0.5
returns : 200 OK, 401 (fail, request error), 501 (fail, server error)
200 OK  : example result body:
	  <result>
	    <row>
	      <num_of_rows>1</num_of_rows>
	    </row>
	  </result>