timdp/jflow — pull request #1 by chenyi1976 (2012-09-02 23:47:03+00:00)
Title: one bug fix, three new features.

1, In Mac OS, it is very slow, it is due to drawline() method has performance issue under Mac, workaround it.
2, Now in MacBook, it support trackpad now.
3, Now user can create a list contains 20 pictures, but only show 5 of them at one time.
4, Previous all pictures are show in the left-to-right sequence, now it support right-to-left.