make urlhistory nick sorting case-insensitive, simplify a few decorator calls

plugins/explain.py

@@ -1,7 +1,7 @@
 from util import hook
 from pycparser.cdecl import explain_c_declaration
 
-@hook.command('explain')
+@hook.command
 def explain(inp):
     ".explain <c expression> -- gives an explanation of C expression"
     if not inp:

plugins/tell.py

@@ -17,7 +17,7 @@ def adapt_datetime(ts):
 sqlite3.register_adapter(datetime, adapt_datetime)
 
 
-@hook.command(hook=r'(.*)', prefix=False, ignorebots=True)
+@hook.command(hook=r'(.*)', prefix=False)
 def tellinput(bot, input):
     dbpath = os.path.join(bot.persist_dir, dbname)
     conn = dbconnect(dbpath)

plugins/urlhistory.py

@@ -37,7 +37,7 @@ def get_history(conn, server, chan, url):
     return [x[0] for x in nicks]
     
 def get_nicklist(nicks):
-    nicks = sorted(set(nicks))
+    nicks = sorted(set(nicks), key=unicode.lower)
     if len(nicks) <= 2:
         return ' and '.join(nicks)
     else:

plugins/wikipedia.py

@@ -14,7 +14,7 @@ search_url = api_prefix + "?action=opensearch&search=%s&format=xml"
 paren_re = re.compile('\s*\(.*\)$')
 
 
-@hook.command(hook='w(\s+.*|$)')
+@hook.command('w')
 @hook.command
 def wiki(inp):
     '''.w/.wiki <phrase> -- gets first sentence of wikipedia ''' \