Useless DropdownBuiltInLibrariesItem removed

Moved LibraryInstaller from app to arduino-core
Moved InstallerJDialogUncaughtExceptionHandler to the generic contributions.ui package

Author: Federico Fissore

app/src/cc/arduino/contributions/libraries/ui/DropdownBuiltInLibrariesItem.java

@@ -30,8 +30,9 @@
 
 import cc.arduino.contributions.libraries.ContributedLibrary;
 import cc.arduino.contributions.libraries.LibrariesIndexer;
+import cc.arduino.contributions.libraries.LibraryInstaller;
 import cc.arduino.contributions.packages.DownloadableContribution;
-import cc.arduino.contributions.packages.ui.InstallerJDialogUncaughtExceptionHandler;
+import cc.arduino.contributions.ui.InstallerJDialogUncaughtExceptionHandler;
 import cc.arduino.contributions.ui.*;
 import cc.arduino.utils.Progress;
 import com.google.common.base.Predicate;

app/src/cc/arduino/contributions/libraries/ui/LibraryManagerUI.java

@@ -28,6 +28,7 @@
  */
 package cc.arduino.contributions.packages.ui;
 
+import cc.arduino.contributions.ui.InstallerJDialogUncaughtExceptionHandler;
 import cc.arduino.contributions.packages.ContributedPlatform;
 import cc.arduino.contributions.packages.ContributionInstaller;
 import cc.arduino.contributions.packages.ContributionsIndexer;

app/src/cc/arduino/contributions/packages/ui/ContributionManagerUI.java

@@ -27,7 +27,7 @@
  * the GNU General Public License.
  */
 
-package cc.arduino.contributions.packages.ui;
+package cc.arduino.contributions.ui;
 
 import cc.arduino.contributions.ui.InstallerJDialog;
 

app/src/cc/arduino/contributions/packages/ui/InstallerJDialogUncaughtExceptionHandler.java renamed to app/src/cc/arduino/contributions/ui/InstallerJDialogUncaughtExceptionHandler.java

@@ -25,7 +25,7 @@
 import cc.arduino.contributions.VersionHelper;
 import cc.arduino.contributions.libraries.ContributedLibrary;
 import cc.arduino.contributions.libraries.LibrariesIndexer;
-import cc.arduino.contributions.libraries.ui.LibraryInstaller;
+import cc.arduino.contributions.libraries.LibraryInstaller;
 import cc.arduino.contributions.libraries.ui.LibraryManagerUI;
 import cc.arduino.contributions.packages.ContributedPlatform;
 import cc.arduino.contributions.packages.ContributionInstaller;

app/src/processing/app/Base.java

@@ -26,10 +26,8 @@
  * invalidate any other reasons why the executable file might be covered by
  * the GNU General Public License.
  */
-package cc.arduino.contributions.libraries.ui;
+package cc.arduino.contributions.libraries;
 
-import cc.arduino.contributions.libraries.ContributedLibrary;
-import cc.arduino.contributions.libraries.LibrariesIndexer;
 import cc.arduino.contributions.packages.DownloadableContributionsDownloader;
 import cc.arduino.utils.ArchiveExtractor;
 import cc.arduino.utils.MultiStepProgress;