Fixed Supervisor config file example so it actually stops the components properly.

README.textile

@@ -165,16 +165,20 @@ bc.. [program:stackdump-solr]
 command=/path/to/stackdump/start_solr.sh
 priority=900
 user=stackdump_user
+stopasgroup=true
 stdout_logfile=/path/to/stackdump/solr_stdout.log
 stderr_logfile=/path/to/stackdump/solr_stderr.log
 
 [program:stackdump-web]
 command=/path/to/stackdump/start_web.sh
 user=stackdump_user
+stopasgroup=true
 stdout_logfile=/path/to/stackdump/web_stdout.log
 stderr_logfile=/path/to/stackdump/web_stderr.log
 
-p. Yet another option for those using newer Linux distributions is to create native "systemd service definitions":http://www.freedesktop.org/software/systemd/man/systemd.service.html of type _simple_ for each of the components.
+p. Supervisor v3.0b1 or later is required, due to the _stopasgroup_ parameter. Without this parameter, Supervisor will not be able to stop the Stackdump components properly as they're being executed from a script.
+
+Yet another option for those using newer Linux distributions is to create native "systemd service definitions":http://www.freedesktop.org/software/systemd/man/systemd.service.html of type _simple_ for each of the components.
 
 h2. Maintenance
 

python/src/stackdump/commands/import_site.py

@@ -538,13 +538,17 @@ class PostContentHandler(xml.sax.ContentHandler):
 
         By default, they are committed immediately. Set the ``commit`` argument
         to False to disable this behaviour.
+
+        This function will loop if a SolrError is encountered to allow the user
+        to retry the commit without having to start again from the beginning,
+        e.g. if the Solr instance stops responding.
         """
         while True:
             try:
                 self.solr.add(questions, commit=commit)
                 break
             except SolrError, e:
-                print('An exception occurred while committing questions - ')
+                print('A Solr error occurred while committing questions - ')
                 traceback.print_exc(file=sys.stdout)
                 print('')
                 while True:
@@ -557,6 +561,8 @@ class PostContentHandler(xml.sax.ContentHandler):
                             break
                         else:
                             raise
+            except:
+                raise
     
     def commit_all_questions(self):
         """