Fix an occasional assertion failure
Clearer release instructions
Smarter handling of possible linefeeds inside XML.

Solves issue #200
Fix problem with unread count
Fix recording of the Sync preferences choices
Fix Open Reader "mark all read" undo and small change in managing unread count
Restore ability to handle file:// URLs (issue #177)
Version notes for 3 Beta 13
Resolve Issue #204: Linefeed filtering issue where: (a) Atom feed and (b) title element type != HTML or XHTML
Merge pull request #205 from Echelon9/fix-issue-204

Resolve Issue #204: Linefeed filtering issue where: (a) Atom feed and (b) title element type != HTML or XHTML
Cleaner logging
Makes the "ot" and "n" parameters work correctly together.
Make sure we do not transmit cookies
Better handling of feeds reusing the same guid
Less ambiguous names for StringExtensions methods

Makes behavior of -(NSString *)host and -(NSString *)baseURL match better those of NSURL's homonymous functions.

(A problem was spotted with the homepage link that Vienna synthesizes when feeds do not provide it : <https://github.com/ViennaRSS/vienna-rss/blob/2c57150a0634cfd877dff263ac088ccc86db215d/src/RefreshManager.m#L782-L786>)
Google+ plugin

Contributed by cocoaforge.com user barkmaker
Get articles' ids for syncing read/starred status.

Now that we only get recent articles when we fetch them, we need to get id's of starred and unread articles in order to update their statuses into Vienna's database.
Avoid duplicates when moving a feed to a folder.

When one assigns a label to a feed, Bazqux does not automatically remove the previous label.
Unified layout : keep focus after clicking a link.
Try to improve Unified layout's handling of cells.