Simple docset updating, and docset metadata.
Split docset list retrieval and extraction into two callbacks.
Use structure to store loaded docset information.
Redownload docsets that are missing metadata.
Custom docset feeds. Fixed button states.
Metadata for all docsets.
The focus will be change on pressing enter in treeview or lineedit fixes #71
ExtJS: ignore invalid files with empty names
ExtJS: Fixed <h4>...</h3> substitution
Merge remote-tracking branch 'upstream/master' into docsetUpdates
Show update progress in docsetsList.
Progress when downloading metadata for installed docsets
Select preferred download url from feed's source.
ExtJS: hopefully fixed ignoring empty files (not tested)
New docsets
Merge pull request #146 from Kapeli/master

New docsets
Merge pull request #135 from ZiDoMs/iss71

Change focus on pressing enter
Fix the tray icon problem in Unity

New requirements: libgtk2.0-dev libappindicator-dev
First try on network proxy configuration
Using the proxy on main window.