Further readme fixes
Primary preparation to git-version
Modify readme and rcsample
Replace rcsample with the correct one for git-version
Stop looking for local album covers for external tracks and streams
Adapt to new Jamendo links
Fixes to make inputbox work in git/master
Fix search for local album covers
don't report bug if mpd is updating its database
Update Jamendo API
Fix support for disabling scrolling
Adapt to yet new Jamendo link format
Jamendo link format again...
Adapt to new Awesome extension usage convention
Remove modules usage to be compatible with Lua 5.2
Rename notification functions for clarity, minor refactoring
Rewrite update_track so it handles Internet radio streams nicely
Replaced table.getn calls to length operator

table.getn was deprecated and removed from Lua 5.2+

Signed-off-by: Arvydas Sidorenko <asido4@gmail.com>
Properly use escape symbol in regexps

Since escapes were single slashes, Lua interpreted them as string
escapes instead of putting them into shell command which the string
represent, thus make no sense.
Don't escape pipe symbols