[UIMA-3823] substitute single char values for 1 char strings in various places identified by google codepro.  Change some boolean tests which compare against true or false to just test the boolean value.  delete occasional double semicolon at end of java statements. Simplify calculation of boolean values by removing unneeded if statement constructs.

git-svn-id: https://svn.apache.org/repos/asf/uima/uimaj/trunk@1594908 13f79535-47bb-0310-9956-ffa450edef68