replaced referenced to "directory" with "folder"
added application setting for caffe folder
added application settings view
fix null pointer when opening root drive as project folder
fix bug: configuration list should be cleared before loading a new project
added buttons for selecting folders in application settings
fixed bug: when opening a project and overriding caffe folder setting with null
fixed bug: when canceling the directory chooser for opening a project, we should leave the current project unchanged (and not load an empty project)
add tooltips to buttons:
- run configuration
- save configuration settings changes
- revert configuration settings changes
- save project settings changes
- revert project settings changes
- save application settings changes
- revert application settings changes
renamed views and controllers