- history model and database writer are now in own thread
- this will keep main thread (GUI) responsive when writing to
database
- it also greatly increases performance when deleting multiple
items in history
- also made possible to load files from qrc: scheme
- improved source viewer:
* fixed incomplete source code loaded when opening window
(it loads the whole source only after reloading)
* improved performance, source is now highlighted much faster
- using .ico favicon in all qupzilla: pages (no longer png)
it should fix problems when favicon wasn't loaded on some systems
- fixed alignment of site icon in navigation bar when compiling
with Qt 4.8
- fixed deleting of local certifications in ssl manager
