FIX:(#478) UnboundLocalError if no Newznab providers selected, FIX:(#478) Refresh Selected Comics on Manage tab gave replace error

mylar/helpers.py

@@ -719,7 +719,7 @@ def replacetheslash(data):
     # os.path.join will pipe in the '\' in windows, which won't resolve 
     # when viewing through cherrypy - so convert it and viola.    
     if platform.system() == "Windows":
-        slashreplaced = replace.data('\\', '/')
+        slashreplaced = data.replace('\\', '/')
     else:
         slashreplaced = data
     return slashreplaced

mylar/search.py

@@ -227,6 +227,7 @@ def search_init(ComicName, IssueNumber, ComicYear, SeriesYear, IssueDate, IssueI
                                 logger.fdebug("Found via API Alternate Naming.")
                                 break
             else:
+                newznab_host = None
                 nzbprov = nzbprovider[nzbpr]
                 if searchmode == 'rss':
                     if mylar.ENABLE_RSS: