samvermette/SVPullToRefresh — pull request #123 by Gabro (2013-04-27 00:58:06+00:00)
Title: Added option for pull to refresh from bottom

Added `-addPullToRefreshWithActionHandler:position:` which takes a `SVPullToRefreshPosition` as second parameter.

`SVPullToRefreshPosition` may be either:
- `SVPullToRefreshPositionTop` : pull to refresh from the top of the scroll view (the current behavior)
- `SVPullToRefreshPositionBottom` : pull to refresh from the bottom of the scroll view

-------

Example

[self.tableView addPullToRefreshWithActionHandler:^{
// ...
} position:SVPullToRefreshPositionBottom];

will result the following behavior

![SVPullToRefresh from bottom](http://f.cl.ly/items/1w0z2x2Z3v1Q2c0X0k1X/SVPullToRefreshBottom.png)