Minor housekeeping in PreferencePanel
Resolve merge conflict
Move autolog to new prefs
Move idle code to new prefs
Add prefs profiles keys view controller and move key bindings view to it
Move option keys sends prefs to new prefs
Move delete sends c-h to new prefs
Move application keypad allowed to new prefs, and treat keymap as an owned value
Move advanced prefs to new prefs system
Clean up project file, comments.
Remove unused method declarations
Remove profileWithGuidWasSelected
Make prefpanel not be an NSTextFieldDelegate since it's not called that way
remove dead bookmarkSettingChanged: (yay!)
Remove IBAction from closeWindow and closeCurrentSession in PrefPanel, where not needed.
Move first responder methods in prefpanel
Modernize sharedInstance and sessionsInstance
rename dataSource to _profileModel in prefpanel
Rename prefs to _userDefaults in PreFPanel
Load remote prefs much earlier (it was being done after the profilesmodel was loaded, which was too late, and it was inappropriate to load it from prefpanel's initializer anyway).