Add points of interest

Do a bunch of refactoring in the process.  Current display on homepage
is a little shonky but that can be improved when there is something
using it.

apps/map/forms.py

@@ -11,7 +11,7 @@ from leaflet.forms.widgets import LeafletWidget
 
 from apps.files.models import File, ImageFile
 
-from .models import CaseStudy, SpatialRefSys
+from .models import CaseStudy, SpatialRefSys, PointOfInterest
 from .widgets import JSONFileListWidget
 
 
@@ -19,6 +19,40 @@ class MinimumZoomWidget(LeafletWidget):
     geometry_field_class = 'MinimumZoomField'
 
 
+class PointOfInterest(forms.models.ModelForm):
+    def __init__(self, *args, **kwargs):
+        super(PointOfInterest, self).__init__(*args, **kwargs)
+        self.helper = FormHelper(self)
+        self.helper.form_id = 'case-study-form'
+        self.helper.form_class = 'form-horizontal'
+        self.helper.form_method = 'post'
+        self.helper.form_action = 'add'
+        self.helper.label_class = 'col-lg-2'
+        self.helper.field_class = 'col-lg-10'
+        self.helper.include_media = False
+
+        self.helper.form_action = reverse('point-of-interest-form')
+        self.helper.add_input(Submit('submit', _('Submit'), css_class='btn-success center-block'))
+
+    class Meta:
+        model = PointOfInterest
+
+        widgets = {
+            'location': MinimumZoomWidget(attrs={
+                'settings_overrides': {
+                    'SCALE': False
+                }
+            }),
+        }
+
+        fields = [
+            'title',
+            'location',
+            'synopsis',
+            'link',
+        ]
+
+
 class BaseCaseStudyForm(forms.models.ModelForm):
     """Base form class for the CaseStudy model."""