In Sorting the %fn substitution sometimes fails to rename the file properly.

The Sorting code assumed that the file name used as the source for %fn
is always a base name. Sometimes it can be a full name. Deal with it.
Prevent crash in DateSorter.
Add special "wait_for_dfolder", will wait for "temp download folder" at startup.

At startup, wait for the temporary download folder to come on line.
Supports situations where external drives are used, which do not mount before
SABnzbd starts up.
Support servers that don't support STAT and BODY commands.

When server sends error 500, use alternative "HEADER" and "ARTICLE" instead,
which are less efficient.
Prevent web-watchdog from crashing when using Python 2.5
Option to terminate download if too much data is missing.

Option 'fail_hopeless' Config->Switches.
On-the-fly check for possible completion after each file is processed.
Abort if it's no longer possible to download at least 99% of total data (payload + par2).
Don't do the check when retrying from History.
Fix missing Retry link for "Out of retention" jobs.
Update POT file.
Register removed articles and list in download report.
Add "Abort" option to encryption detection.

The option pause_on_pwrar gets an extra value (2) which will
abort an encrypted job. Retrying the job will disable the check.
Update POT file.
Check for IPv6 connectivity should not use specific exceptions.
Add handling of an extra par2 error message.
Update translations
API functions "addfile" and "addlocalfile" now support "nzbname" parameter for ZIP files with single NZB.

Also, prevent crash on calling "cat_convert" in those api functions (undefined).
Make sure "Abort" error message ends up in download report.
Don't retry an empty but correct NZB retrieved from an indexer.

Also add special option "warn_empty_nzb" to control warning about empty NZBs.
Support NZB 1.1 meta data; currently "category" and "password" are used.

"category" will trigger category conversion.
"password" value(s) will be used when an encrypted download is encountered.
The latter will also suppress the on-the-fly encryption detection.
Update copyright year.
Update text files for 0.7.8