Fixed the pager and help so the full help is displayed

Also added a 'q' option to the pager to cancel out of huge help pages.

bpython/internal.py

@@ -1,49 +0,0 @@
-import pydoc
-import textwrap
-import sys
-
-window = None
-
-def _help( query ):
-    """Wrapper for the regular help() function but with a ghetto
-    PAGER since curses + less = :(
-    query : the actual search thing
-    window : a curses window instance to use getch() on
-            and for extrapolating the window size to work it all out"""
-
-    rows, columns = window.getmaxyx()
-    rows -= 3
-    columns -= 1
-    output = pydoc.getdoc( query )
-    if '\n' in output:
-        output = output.replace('\n\n', '\n')
-        output = output.split('\n')
-    else:
-        output = [output]
-
-    paragraphs = []
-    for o in output:
-        paragraphs.append( textwrap.wrap( o, columns ) )
-
-    i = 0
-    for j, paragraph in enumerate( paragraphs ):
-        for line in paragraph:
-            sys.stdout.write( line + '\n' )
-            i += 1
-            if not i % rows:
-                wait_for_key( window )
-        if j + 1 < len( paragraphs ):
-            sys.stdout.write('\n ')
-
-def wait_for_key( window ):
-    """Block until a key is pressed for the ghetto paging."""
-
-    window.addstr("Press any key...")
-    while True:
-        c = window.getch()
-        if c:
-            break
-
-    y = window.getyx()[0]
-    window.move(y-1, 0)
-    window.clrtoeol()