pep8 blank lines fixes

flake8 --select W391,E302,E301,E304

autopep8 can't fix W391 even though it claims it can.
Fixed using a simple custom script.

modules/jvmalin/pages.py

@@ -13,6 +13,7 @@ class RoadmapAmbiguity(RoadmapError):
     def __init__(self, error):
         RoadmapError.__init__(self, error)
 
+
 class RoadmapSearchPage(Page):
     def search(self, departure, arrival, departure_time, arrival_time):
         match = -1
@@ -46,6 +47,7 @@ class RoadmapSearchPage(Page):
                 raise RoadmapError('Unable to establish a roadmap with %s time at "%s"' % ('departure' if departure_time else 'arrival', time))
         self.browser.submit()
 
+
 class RoadmapResultsPage(Page):
     def html_br_strip(self, text):
         return "".join([l.strip() for l in text.split("\n")]).strip().replace(' ', '%20')
@@ -96,6 +98,7 @@ class RoadmapResultsPage(Page):
         self.browser[propname] = [ propvalue ]
         self.browser.submit()
 
+
 class RoadmapPage(Page):
     def get_steps(self):
         errors = []