update travis matrix

requirements.txt

@@ -1,22 +1,22 @@
-Django==1.8.17
+Django==1.8.18
 paperclip==2.1.1
-djangorestframework==3.5.3
-gpxpy==0.9.8
+djangorestframework==3.6.3
+gpxpy==1.1.2
 BeautifulSoup4==4.5.3
-requests==2.12.4
+requests==2.18.1
 django-modeltranslation==0.12
 django-shapes==0.2.0
 django-floppyforms==1.7.0
 django-crispy-forms==1.6.1
 django-compressor==1.6
-django-filter==1.0.1
+django-filter==1.0.4
 easy-thumbnails==1.4
 django-tinymce==2.4.0
 django-appypod==1.0.0
 django-leaflet==0.19.0
-django-geojson==2.6.0
-djangorestframework-gis==0.11
+django-geojson==2.10.0
+djangorestframework-gis==0.11.2
 django-embed-video==0.11
-WeasyPrint==0.34
+WeasyPrint==0.38
 django-weasyprint==0.1
 appy==0.9.5