IDE: Prevent a crash when adding a component palette tab with an existing name.

git-svn-id: http://svn.freepascal.org/svn/lazarus/trunk@46840 4005530d-fff6-0310-9dd1-cebe43e6787f
IDE: Prevent uselessly saving environment options during IDE startup and right after closing the settings dialog.

git-svn-id: http://svn.freepascal.org/svn/lazarus/trunk@46841 4005530d-fff6-0310-9dd1-cebe43e6787f
Packager: formatting

git-svn-id: http://svn.freepascal.org/svn/lazarus/trunk@46842 4005530d-fff6-0310-9dd1-cebe43e6787f
IDE: Fix loading user configuration for component palette.

git-svn-id: http://svn.freepascal.org/svn/lazarus/trunk@46843 4005530d-fff6-0310-9dd1-cebe43e6787f
IDE: Return an accidentally removed assignment in component palette. Patch from Sandro Cumerlato.

git-svn-id: http://svn.freepascal.org/svn/lazarus/trunk@46844 4005530d-fff6-0310-9dd1-cebe43e6787f