Merge branch 'dev' (0.3.8 features) into 'master'

功能改进：
* 支持记录IE引擎的访问历史。
* 新标签页输入网址可直接切换至兼容模式浏览。

Bug修复：
* 解决Fanboy's Social Blocking List导致部分网站无法正常显示的问题。
* IE6关闭某些页面时的崩溃问题。
* 在IE引擎页面打开后台新标签页后，无法立即使用Firefox快捷键的问题。

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Enhancements:
* Support recording IE engine's browsing history.
* You can switch to compatibility mode directly for URLs typed on new tabs.

Bug fixes:
* [ABP] Some sites don't display correctly when using Fanboy's Social Blocking List.
* Crash on closing certain pages with IE6 engine.
* Can't use Firefox shortcut keys after opening a new tab in background from IE engine.

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**Please wait for translations from [babelzilla](http://www.babelzilla.org/forum/index.php?showtopic=7464) before merging this pull request.**