UC Browser 7.5.1

here is the latest official version. Entire Changelog : 1. Free Copy comes to Java,finally. 2. Manage to set proxy server,to access some intranet sites. 3. WWW pre-load is now supported to make reading faster than ever. 4. When reading a web page,keep alive with server. 5. Upgrade the core to the latest,as the same as Chinese version. 6. Add accept-language string for visiting some multi-language sites. 7. Mouse is moving quicker if long-press direction button,named Quick up/down. 8. Now auto-refresh interval can be shortened to 10 seconds,in order to track match score or so. 9. More download section (Block size) settings,to match different network and speeding download rate. 10. Changed some default settings,e.g:automatically using the middle server for all pages.So as to provide a better rendering effect. 11. Some bug fix and little improvement.