core-4428 fix remember last file path across sessions
Merge branch 'master' of
github.com:iPlantCollaborativeOpenSource/ui-apps-widgets-module

Conflicts:
	src/main/java/org/iplantc/core/uiapps/widgets/client/view/fields/AppWizardFileSelector.java
	src/main/java/org/iplantc/core/uiapps/widgets/client/view/fields/AppWizardFolderSelector.java