uses standard functions instead of form filters and fixes taglist default

- seems simpler to use the same tag field processing procedures on media
  submit and edit, so now processing with a regular function instead of
  a form filter. Filters run on form load and post by default.
- moved tags to sidebar
- taglist defaults to [] instead of None
- adds case sensitivity toggle

mediagoblin/submit/forms.py

@@ -17,8 +17,6 @@
 
 import wtforms
 
-from mediagoblin.util import convert_to_tag_list
-
 
 class SubmitStartForm(wtforms.Form):
     title = wtforms.TextField(
@@ -26,4 +24,4 @@ class SubmitStartForm(wtforms.Form):
         [wtforms.validators.Length(min=0, max=500)])
     description = wtforms.TextAreaField('Description of this work')
     file = wtforms.FileField('File')
-    tags = wtforms.TextField('Tags', filters=[convert_to_tag_list])
+    tags = wtforms.TextField('Tags')

mediagoblin/submit/views.py

@@ -21,7 +21,8 @@ from string import split
 from werkzeug.utils import secure_filename
 
 from mediagoblin.util import (
-    render_to_response, redirect, cleaned_markdown_conversion)
+    render_to_response, redirect, cleaned_markdown_conversion, \
+    convert_to_tag_list)
 from mediagoblin.decorators import require_active_login
 from mediagoblin.submit import forms as submit_forms, security
 from mediagoblin.process_media import process_media_initial
@@ -59,7 +60,7 @@ def submit_start(request):
             
             entry['media_type'] = u'image' # heh
             entry['uploader'] = request.user['_id']
-            entry['tags'] = split(request.POST.get('tags'))
+            entry['tags'] = convert_to_tag_list(request.POST.get('tags'))
 
             # Save, just so we can get the entry id for the sake of using
             # it to generate the file path