Merge [text_view_comments] To allow scrolling in Safari mobile, we set the content of text_view_comments frame in a jQuery UI layout. [c_sync.js] So the automated scrolling operations in c_sync.js must be adjustable to the right part to scroll. [c_sync.js] Also, if a comment have to be shown outside of the current viewport, we scroll the correct part to that viewport and then set the comment top Y offset to juste what it needs to avoid the "Add comment" button after scrolling operation. [c_sync.js] If not in Safari mobile, we add an offset here to avoid comment to display under the "Add comment" button.

# taken from plone

import os

bin_search_path = [
    '/usr/bin',
    '/usr/local/bin',
    ]

class MissingBinary(Exception): pass

def bin_search(binary):
    """search the bin_search_path  for a given binary
    returning its fullname or None"""
    result = None
    mode   = os.R_OK | os.X_OK
    for p in bin_search_path:
        path = os.path.join(p, binary)
        if os.access(path, mode) == 1:
            result = path
            break
    else:
        raise MissingBinary('Unable to find binary "%s"' % binary)
    return result