IDE: use compiler of project for FPCVer and codetools macro values

git-svn-id: http://svn.freepascal.org/svn/lazarus/trunk@44141 4005530d-fff6-0310-9dd1-cebe43e6787f
clean up old readmes

git-svn-id: http://svn.freepascal.org/svn/lazarus/trunk@44142 4005530d-fff6-0310-9dd1-cebe43e6787f