Minor UI bug fixes

* Keyboard arrow navigation in ListViews
* Opening Item page by clicking on Image
* Autoload Image for "Empty Tab" (Item Page only)
"Buy now" feature hotfix
Parsing Item Url hotfix

+ Import Cookies tool
New feature - Price Graph

* Minor bugs fixed
Copy Scan Item feature

+ Fixed changing scan params while scanning
Fixed actual price loading

For TF2 inventory and "your price"
Optimized Login Method

+ Added French transation. Thanks to Outpox!
* Updated JSON library.
Added some games support for Inventory

+ TaskBar notification after buy/resell (if form not focused)
Portable Settings

* Fixed async access to log
+ Added delay for Sell feature
Drag'n'Drop Reordering for Scan Lists

+ Filtering feature for Inventory List
Loading Actual Price from Price Overview

+ Saving main window state (location, size, etc.)
Import/Export Scan Lists

* Minor bugs fixed
Cleared some trash +

* Full-portable settings file. Without binding to computer name.
* HotFix for creating new cookie on first login.
Proxy List - Test 2

+ Added form that shows proxy using activity
New "Sell with fee" Setting

+ Stop buying Feature (minimum funds limit)
+ Sorting Inventory list by clicking column headers.
Steam Update Hotfix

11/06/14
Small fixes

* Scanning url with Filter
* Keep-alive turned off for scans
* Random-range delay for selling
Load HTML instead JSON feature for Item page

Slower but more stable method
Hotfix for Newly listed tab

When Html for Item Page enabled
Newly listed no-cache fix

Thanks to https://github.com/kitzik
Force one thread for GET-requests + delay setting.