Fixes for channel schedules
Another channel schedule fix
Make Makefile work with OSX sed
Load Web PVR help page in new tab/window
Convert README to markdown

Make it pretty for GitHub
Minor URL fixup
Minor README edit
Another URL fixup
More OS X changes for Makefile
Tag version 2.83
Update get_iplayer to fix firstbcast and lastbcast dates

Fixed the reading and splitting of the RDF data to correctly find first and last broadcast dates.
Web PVR: Escape programme name for Add Series
Do now allow lastbcast to be set to a future date/time. 

For some radio programmes the RDF contains broadcast dates in the future. An example might be "My First Planet". 
This fix prevents future broadcast dates being assigned to lastbcast.
Replace any undefined tag values with empty string for ID3 tagging

Avoids rare Win64 problems with junk data in TRCK and TPOS frames
Added category field to metadata

Set to first category (in taxonomic order).  Available as a substitution
parameter.  Used to set genre tag.
Added firstbcastdate and lastbcastdate fields to metadata

Date parts of firstbcast and lastbcast fields.  Also available as
substitution parameters.
Force --fatfilename with --whitespace (Windows only)

If --whitespace is used, non-alphanumeric characters are allowed in
output file name, so --fatfilename is necessary to filter them for NTFS.
Enforce 256-char path limit on Windows only
Detect playlist URL in JSON for embedded clips
Removed wma from recording mode shortcuts

WMA is still supported, but must be configured specifically, e.g.,
with --radiomode=wma.  Previous default behaviour may be enabled with
--modes=default,wma.