LCL, grids, fixed selection by mouse if editor is visible and focused (also undoes de previous premature commit)

git-svn-id: http://svn.freepascal.org/svn/lazarus/trunk@42986 4005530d-fff6-0310-9dd1-cebe43e6787f
SynEdit: Spelling 

git-svn-id: http://svn.freepascal.org/svn/lazarus/trunk@42987 4005530d-fff6-0310-9dd1-cebe43e6787f
Debugger: Spelling 

git-svn-id: http://svn.freepascal.org/svn/lazarus/trunk@42988 4005530d-fff6-0310-9dd1-cebe43e6787f