v6.1

[BREAKING] all config objects now use a consistent naming for OnEvent called OnAction instead of OnAction, OnAction, OnEtc
[BREAKING] progress dialog interface has changed ever so slightly
[BREAKING] winphone 8 has been removed from the nuget package - it still exists on github!
[feature][ios] Add optional Init function to allow for top viewcontroller control similar to android top activity - this is good for extensions apparently (Thanks to Kyle Spearrin)
[fix][ios] showerror/success images not being displayed
[fix][ios] date/time dialogs no longer show a solid black background
[fix][droid] snackbar font color works now
[fix][droid] nre on unassigned toast action
[fix][droid] back button does cancels dialogs if dialog is cancellable
[fix][droid] prompt dialog now uses enter as ok click
[fix][uwp] show error/success now uses toasts
[feature] ShowLoading will now close previous instances that were not closed (stupid proofing)
[feature] add SelectedDate parameter to DatePromptAsync
[feature] add SelectedTime parameter to TimePromptAsync