Formatting and comments

git-svn-id: http://svn.freepascal.org/svn/lazarus/trunk@41442 4005530d-fff6-0310-9dd1-cebe43e6787f
SynEdit: cleanup

git-svn-id: http://svn.freepascal.org/svn/lazarus/trunk@41443 4005530d-fff6-0310-9dd1-cebe43e6787f
IDE: don't remove conflicting keys in TKeyCommandRelationList.AssignTo.

git-svn-id: http://svn.freepascal.org/svn/lazarus/trunk@41444 4005530d-fff6-0310-9dd1-cebe43e6787f
IDE: Rewrite and optimize TKeyCommandRelationList.AssignTo. It had nested linear searches and showed high in profiler (gprof) log for startup.

git-svn-id: http://svn.freepascal.org/svn/lazarus/trunk@41445 4005530d-fff6-0310-9dd1-cebe43e6787f