Import regressions due to refactoring for CLI

[jamoore]

To have much of the newer ImportLibrary functionality in both the cli and the gui versions, refactoring was necessary which introduced several bugs:

• #1486 returning null from ImportCandidates.singleFile
• NPE from #1503 (see below)
• mouseover since multiple files can be added in one click? (see below)
• feedback no longer uploads files (fixed)
• warning printed: "Couldn't find icon: gfx/warning_msg16.png" (fixed)
• re-login panel has issues (fixed)
• properties on error dialog not saved (fixed)
• mac app and windows exe fail
• history not showing up (fixed)
• history not 'reimporting'(fixed)
• files which fail during importcandidate not showing up on queue (fixed)
• error in filequeue not being added to feedback queue (fixed)
• eclipse builds failing without testng being built (fixed)
• feedback no longer recording some properties (such as 'additional_files_path' and 'additional_files_size') (fixed)
• 'internal errors' not providing required information for feedback such as reader file types (fixed)
• Properties on filechooser not being saved (partially fixed still not registering in some cases)
• Properties on error feedback not being saved (fixed)
• Properties on project/dataset/spw not being saved (fixed)
• files do not preserve the name specified for them in the import dialog
• It is no longer possible to log into the server more then once from the same machine.
• Importer version should be taken from omero.properties
• On failed files, popup no longer showing up at the end of the import process. (fixed)
• Some error messages (Internal Errors) no longer appear to be providing the full stack trace to the feedback mechanism (fixed)
• ImportCandidate? interfering with the reader used during imports so clicking on the 'add button' will poison the import reader if its running, causing imports to fail - ImportCandidate? will probably need to be moved to its own reader. (Fixed by disabling the add button for now)
• Added importHandler events for IMPORT_QUEUE_DONE - some code from this class can now be moved back into the classes where they belong. (fixed)
• Added importHandler event for IMPORT_QUEUE_START (fixed)
• When ping session dies, app does not properly register as 'logged out'
  
• Icon for debug message popup wrong (fixed)
• Failure dialog and project/dataset dialog both modal and blocking each other. (fixed)

[jmoore]

Further explanation on "mouseover since multiple files":

If a user clicks a directory, say "My Plates" for import, then a single file will show up for each plate. Something of the form: mode0001_z001_t0001.tif. The user will have no way to know which one relates to which plate.

[jmoore]

From #1503 error.log:

11	Exception in thread "AWT-EventQueue-0" java.lang.NullPointerException
12	        at javax.swing.text.DefaultStyledDocument.getCharacterElement(Unknown Source)
13	        at javax.swing.text.StyledEditorKit$AttributeTracker.updateInputAttributes(Unknown Source)
14	        at javax.swing.text.StyledEditorKit$AttributeTracker.caretUpdate(Unknown Source)
15	        at javax.swing.text.JTextComponent.fireCaretUpdate(Unknown Source)
16	        at javax.swing.text.JTextComponent$MutableCaretEvent.fire(Unknown Source)
17	        at javax.swing.text.JTextComponent$MutableCaretEvent.stateChanged(Unknown Source)
18	        at javax.swing.text.DefaultCaret.fireStateChanged(Unknown Source)
19	        at javax.swing.text.DefaultCaret.changeCaretPosition(Unknown Source)
20	        at javax.swing.text.DefaultCaret.handleSetDot(Unknown Source)
21	        at javax.swing.text.DefaultCaret.setDot(Unknown Source)
22	        at javax.swing.text.DefaultCaret.setDot(Unknown Source)
23	        at javax.swing.text.JTextComponent.setCaretPosition(Unknown Source)
24	        at ome.formats.importer.gui.GuiImporter$5.adjustmentValueChanged(GuiImporter.java:317)