make fake_events device a private feature of the Kindle device initialization

This is highly Kindle-specific, so we keep it there for now
fixes for picdocument

picdocument didn't use the document API correctly
update base

depends on pic_jpeg FFI conversion
Merge pull request #1134 from hwhw/master

Slight refactoring of input, fix picdocument, FFI-API for pic_jpeg
schedule in menu option callback
so that new reginal update on menu entry don't
affect screen update from callback results
Merge pull request #1135 from chrox/fix_touchmenu

schedule in menu option callback
fix refresh with rotation and viewport
Merge pull request #1136 from hwhw/master

fix refresh with rotation and viewport
Minor English improvements.
Capitalization: change a few mentions of calibre to lowercase

The author likes it that way. See http://calibre-ebook.com/about
Correct "cannot connect to calibre server string"
Merge pull request #1141 from Frenzie/master

Minor English improvements.