hwhw/kindlepdfviewer — pull request #578 by tigran123 (2012-11-13 23:17:29+00:00)
Title: Optimize UniReader:redrawCurrentPage()

1. There is no need to call the :goto() method from `UniReader:redrawCurrentPage()` which does the extra work of adding to jump history and (most importantly, as the jump history is ignored in this case anyway) pre-caching, which is not relevant for the simple task of redrawing the current page.

2. The page goto `G` function can now be optimized to avoid pre-caching if the page has not actually changed.