fixed undefined name in MimeTypes.namedItem
changed Window._context

when `if not hasattr(self, '_context')` is used the context property is't working as expected. it is called again and again, makes the startup very slow. with this fix the whole app runs from >10 secs in <1sec.
Merge pull request #64 from max0d41/patch-1

Fixed undefined name in MimeTypes.namedItem
Merge pull request #65 from max0d41/patch-2

changed Window._context
Revert "Merge pull request #65 from max0d41/patch-2"

This reverts commit 066726d34c1d3ae829a9ada10cd149e858535e1d, reversing
changes made to 4eaa5ba78585c3182474532bacfc33cf189f0b9d.
Avoid forcing V8 full garbage collections (performance optimization)
Port to the latest PyV8 AST API
Updated documentation
Version 0.4.28
Workaround for issue #66
Chrome 29.0.1547.59\t(Samsung Galaxy S II, Android 4.1.2) personality
Chrome 30.0.1599.15 (Linux) personality
Updated documentation
Added support for RabbitMQ servers that are protected by passwords.
Merge pull request #67 from mmu002/master

Added support for RabbitMQ servers that are protected by passwords.
Added boost dependancy
Properly handle nodes inserted through innerHTML
Minor fix
changes requested by @buffer
changes requested by @buffer