fix page comparing in addJump

cre.cpp

@@ -99,7 +99,7 @@ static int getNumberOfPages(lua_State *L) {
 static int getCurrentPage(lua_State *L) {
 	CreDocument *doc = (CreDocument*) luaL_checkudata(L, 1, "credocument");
 
-	lua_pushinteger(L, doc->text_view->getCurPage());
+	lua_pushinteger(L, doc->text_view->getCurPage()+1);
 
 	return 1;
 }

crereader.lua

@@ -114,7 +114,7 @@ function CREReader:goto(pos, is_ignore_jump, pos_type)
 		self.doc:gotoPos(pos)
 	end
 
-	-- add to jump_stack, distinguish jump from normal page turn
+	-- add to jump history, distinguish jump from normal page turn
 	-- NOTE:
 	-- even though we have called gotoPos() or gotoXPointer() previously, 
 	-- self.pos hasn't been updated yet here, so we can still make use of it.
@@ -168,7 +168,7 @@ function CREReader:prevView()
 end
 
 ----------------------------------------------------
--- jump stack related methods
+-- jump history related methods
 ----------------------------------------------------
 function CREReader:isSamePage(p1, p2)
 	return self.doc:getPageFromXPointer(p1) == self.doc:getPageFromXPointer(p2)

unireader.lua

@@ -1362,7 +1362,7 @@ function UniReader:addJump(pageno)
 	-- set up new head
 	-- if backward stack top is the same as page to record, remove it
 	if #self.jump_history ~= 0 and
-	self.jump_history[#self.jump_history].page == pageno then
+	self:isSamePage(self.jump_history[#self.jump_history].page, pageno) then
 		self.jump_history[#self.jump_history] = nil
 	end
 	table.insert(self.jump_history, jump_item)