codetools: ifend is an end

git-svn-id: http://svn.freepascal.org/svn/lazarus/trunk@41195 4005530d-fff6-0310-9dd1-cebe43e6787f
codetools: elseif is an else

git-svn-id: http://svn.freepascal.org/svn/lazarus/trunk@41196 4005530d-fff6-0310-9dd1-cebe43e6787f
IDE: source editor: set elseif

git-svn-id: http://svn.freepascal.org/svn/lazarus/trunk@41197 4005530d-fff6-0310-9dd1-cebe43e6787f