diff --git a/src/calibre/ebooks/mobi/debug.py b/src/calibre/ebooks/mobi/debug.py
index 8034117f9b..47450842d1 100644
--- a/src/calibre/ebooks/mobi/debug.py
+++ b/src/calibre/ebooks/mobi/debug.py
@@ -1430,16 +1430,17 @@ class MOBIFile(object): # {{{
         print (str(self.mobi_header).encode('utf-8'), file=f)
 # }}}
 
-def inspect_mobi(path_or_stream, prefix='decompiled'): # {{{
+def inspect_mobi(path_or_stream, ddir=None): # {{{
     stream = (path_or_stream if hasattr(path_or_stream, 'read') else
             open(path_or_stream, 'rb'))
     f = MOBIFile(stream)
-    ddir = prefix + '_' + os.path.splitext(os.path.basename(stream.name))[0]
+    if ddir is None:
+        ddir = 'decompiled_' + os.path.splitext(os.path.basename(stream.name))[0]
     try:
         shutil.rmtree(ddir)
     except:
         pass
-    os.mkdir(ddir)
+    os.makedirs(ddir)
     with open(os.path.join(ddir, 'header.txt'), 'wb') as out:
         f.print_header(f=out)
 
diff --git a/src/calibre/ebooks/mobi/mobiml.py b/src/calibre/ebooks/mobi/mobiml.py
index d108742f3c..eefa9d9e03 100644
--- a/src/calibre/ebooks/mobi/mobiml.py
+++ b/src/calibre/ebooks/mobi/mobiml.py
@@ -532,7 +532,7 @@ class MobiMLizer(object):
             bstate.pbreak = True
         if isblock:
             para = bstate.para
-            if para is not None and para.text == u'\xa0':
+            if para is not None and para.text == u'\xa0' and len(para) < 1:
                 para.getparent().replace(para, etree.Element(XHTML('br')))
             bstate.para = None
             bstate.istate = None
diff --git a/src/calibre/ebooks/mobi/output.py b/src/calibre/ebooks/mobi/output.py
index aeab8518a9..4451bc66b8 100644
--- a/src/calibre/ebooks/mobi/output.py
+++ b/src/calibre/ebooks/mobi/output.py
@@ -50,6 +50,11 @@ class MOBIOutput(OutputFormatPlugin):
             help=_('When adding the Table of Contents to the book, add it at the start of the '
                 'book instead of the end. Not recommended.')
         ),
+        OptionRecommendation(name='extract_to', recommended_value=None,
+            help=_('Extract the contents of the MOBI file to the'
+                ' specified directory. If the directory already '
+                'exists, it will be deleted.')
+        ),
         OptionRecommendation(name='mobi_navpoints_only_deepest',
             recommended_value=False,
             help=_('When adding navpoints for the chapter-to-chapter'
@@ -185,3 +190,8 @@ class MOBIOutput(OutputFormatPlugin):
                             write_page_breaks_after_item=write_page_breaks_after_item)
             writer(oeb, output_path)
 
+        if opts.extract_to is not None:
+            from calibre.ebooks.mobi.debug import inspect_mobi
+            ddir = opts.extract_to
+            inspect_mobi(output_path, ddir=ddir)
+
diff --git a/src/calibre/manual/template_ref_generate.py b/src/calibre/manual/template_ref_generate.py
index f4c1ead165..ab9995dc16 100644
--- a/src/calibre/manual/template_ref_generate.py
+++ b/src/calibre/manual/template_ref_generate.py
@@ -67,11 +67,15 @@ def generate_template_language_help():
 
     for func in all_builtin_functions:
         class_name = func.__class__.__name__
+        if class_name == 'BuiltinMergeLists':
+            class_name = 'BuiltinListUnion'
         func_sig = getattr(func, 'doc')
         x = func_sig.find(' -- ')
         if x < 0:
             print 'No sig for ', class_name
             continue
+        if func_sig.startswith('merge_lists('):
+            continue
         func_sig = func_sig[:x]
         func_cat = getattr(func, 'category')
         funcs[func_cat][func_sig] = class_name