Merge branch 'master' of github.com:hwhw/kindlepdfviewer into djvu-highlight

Conflicts:
	blitbuffer.c
	unireader.lua

djvureader.lua

@@ -1,21 +1,16 @@
 require "unireader"
 
-DJVUReader = UniReader:new{
-	newDC = function()
-		print("djvu.newDC")
-		return djvu.newDC()
-	end,
-}
-
-function DJVUReader:init()
-	self.nulldc = self.newDC()
-end
+DJVUReader = UniReader:new{}
 
 -- open a DJVU file and its settings store
 -- DJVU does not support password yet
 function DJVUReader:open(filename)
-	self.doc = djvu.openDocument(filename)
-	return self:loadSettings(filename)
+	local ok
+	ok, self.doc = pcall(djvu.openDocument, filename)
+	if not ok then
+		return ok, self.doc -- this will be the error message instead
+	end
+	return ok
 end
 
 function DJVUReader:_isWordInScreenRange(w)