Update to v3.1.1

Watch the price of product in Price Monitor, and notify when the price is dropped. Show the price watch history graph.
Show product price-history graph (with multi data source), and compare price with other sites.
Support sites: amazon.com, bestbuy.com, newegg.com, amazon.co.uk, 360buy.com, newegg.com.cn, amazon.cn, yihaodian.com, 51buy.com, dangdang.com, gome.com, suning.com, tmall.com, taobao.com, vancl.com, mbaobao.com, m18.com, coo8.com, moonbasa.com, vipshop.com, redbaby.com.cn, 99read.com, womai.com, china-pub.com

Usage:

1. Install

2. Visit product page on one of sites

3. Click sidebar or price-toolbar in page

4. Price-history graph is showing in sidebar page.

5. Watch product's price by add product into price monitor.

Changelog：

3.1.1
+ customize notify price

3.0.4
* support domain jd.com

3.0.2
+ Price Monitor
+ Direct Search
+ Price-history graph with multi source
+ Price filter, site filter, price sort for search result.

2.9.0
+ add china-pub.com
* fix search and ui problem

2.8.6
* fix search problem

2.8.5
+ add womai.com
* fix product match problem at dangdang.com and gome.com.cn

2.8.0
+ add price-history data source
* fix product match problem at amazon.cn

2.7.5
* add zoom feature when price-history graph is small

2.7.3
+ change the price-history data source

2.7.2
+ add amazon.co.uk

2.7.1
* fix query bugs

2.7.0
* add bestbuy.com, newegg.com, vancl.com, mbaobao.com, m18.com, coo8.com, moonbasa.com, vipshop.com, redbaby.com.cn
* fix search bugs
* fix ui bugs

2.6.0
* replace plugin icon (thanks for sic's icon)
* UI adjust 

2.5.0
+ can search product now (with thefind.com engine
* UI adjust
* allow pin

2.4.0
+ settings added
+ separate features with chinese and english version
+ (chinese version) show the RMB value by exchange rate in Amazon.com
+ (chinese version) mark links sell by third party in 360buy.com
* (chinese version) fixed price-history graph is not display correctly

2.3.2
* Fixed price-history graph error, added legends

2.3.1
* Fixed search bug

2.3.0
+ add user keywords search for chinese sites
* Fixed ui and language bugs

2.2.1
* fixed link error

2.2
+ support gome.com, suning.com, tmall.com, taobao.com
* fixed price-history graph error with some products

2.1
+ support yihaodian.com, 51buy.com
+ add support sitelist

2.0.3
* UI BUG Fixed

2.0.1 
+ add a sidebar and page toolbar to show all price info
+ show same product's price on other sites (amamzon.com is under construction))

1.1.0 Support sites add amazon.com