Don't call processEvents in NetworkManager.

This caused the segfaults and memory corruption issues mentioned in #256.
configtypes: Handle none_ok differently for List.
Move special network replies to their own file.
configtypes: Add new UrlList type.
configtypes: Add more tests for List/UrlList.
Escape regex correctly.
DownloadItem: add successful attribute.
DownloadItem: Add an autoclose attribute.
DownloadItem: Make fileobj public.
downloads: Make it possible to set fileobj instead of name.
downloads: Document _win_id.
downloads: Whitespace change.
downloads: Add a generic NetworkManager.
downloads: Return the created DownloadItem.
Fix setting of successful flag.
Don't try to set fileobject on errors.
Use _die on QNetworkReply errors.
Recalculate geometry if data changed.
Add basic adblock functionality.
Use statusbar messages for adblock