Include gridliner labels in tight bbox calculation

Docstring fix

Pass renderer to _draw_gridliner, add preceding draw() post-process steps to get_tightbbox()

Ignore files generated by my vim plugin

Python 2 compatibility

No longer clear _gridliners

.gitignore

@@ -49,6 +49,7 @@ benchmarks/envs/
 \#*
 \.\#*
 *.swp
+.vimsession
 .ipynb_checkpoints/
 .idea/
 

lib/cartopy/mpl/geoaxes.py

@@ -419,6 +419,25 @@ def hold_limits(self, hold=True):
                 (self.ignore_existing_data_limits,
                     self._autoscaleXon, self._autoscaleYon) = other
 
+    def get_tightbbox(self, renderer, *args, **kwargs):
+        """Draw gridliners so tight bounding box algorithm will
+        incorporate gridliner labels."""
+        # Matplotlib approaches this problem in the same way, by duplicating
+        # post-processing steps in both Axes.draw and Axes.get_tightbbox
+        if self.get_autoscale_on() and self.ignore_existing_data_limits:
+            self.autoscale_view()
+
+        if self.background_patch.reclip:
+            clipped_path = self.background_patch.orig_path.clip_to_bbox(
+                self.viewLim)
+            self.background_patch._path = clipped_path
+
+        self.apply_aspect()
+        for gl in self._gridliners:
+            gl._draw_gridliner(background_patch=self.background_patch,
+                               renderer=renderer)
+        return super(GeoAxes, self).get_tightbbox(renderer, *args, **kwargs)
+
     @matplotlib.artist.allow_rasterization
     def draw(self, renderer=None, inframe=False):
         """