schemas mini-refactor, simplified them and MinimizeAggrResult, removed a bunch of crap

git-svn-id: http://sphinxsearch.googlecode.com/svn/trunk@3901 8b96e2b9-35c5-2c16-bc47-5122d61876d4
added php ubertest.php t 123:4 syntax to precision-run just query 4 in test 123

git-svn-id: http://sphinxsearch.googlecode.com/svn/trunk@3902 8b96e2b9-35c5-2c16-bc47-5122d61876d4