Use callback to detect redfam.section

Detecting redfam-Sections via RegExp caused some false positives due to
wrong formated things in wikisyntax. See Task

Related Task: [https://fs.golderweb.de/index.php?do=details&task_id=78 FS#78]

redpage.py

@@ -28,9 +28,10 @@ Provides a class for handling redundance discussion pages and archives
 import pywikibot  # noqa
 import mwparserfromhell as mwparser
 
-import jogobot
+import jogobot  # noqa
 
 from mysqlred import MysqlRedPage
+from redfam import RedFamParser
 
 
 class RedPage:
@@ -116,7 +117,7 @@ class RedPage:
         # include_lead = if true include first section (intro)
         # include_heading = if true include heading
         fams = self.wikicode.get_sections(
-            matches=jogobot.config["redundances"]["section_heading_regex"],
+            matches=RedFamParser.is_section_redfam_cb,
             include_lead=False, include_headings=True )
 
         # Iterate over RedFam