Make download of sound files multi-threaded. Each sound file download takes
place in its own thread, and has its own progress bar and cancel button,
which stack up from the bottom of the list of results.
Sound files download into a file with a '.part' suffix, which is then
renamed to the intended name on success.
Add a 'Similar' button, which searches Freesound for sounds similar to the
currently-selected sound in the results list.
Use the new freesound-download-dir config variable to decide the location
of sound files downloaded from Freesound.
Move the Windows-specific logic to replace '/'s with '\'s from
Mootcher::changeWorkingDir() to Mootcher::ensureWorkingDir(), and remove
the now unused Mootcher::changeWorkingDir().
Use Glib::build_filename to construct the path.
Add a 'More' button to load the next page of results without clearing the already-found list.
Don't allow cancellation of searches, and don't update progress bar around searches, since we only get one page at a time now.
Show number of pages of results remaining to download in the tooltip of the 'More' button.
Use a new Mootcher object for each request, to avoid bad things happening when clicking in the Freesound search results list while a search or file download is already in progress.
Make the 'Stop' button insensitive except when it will actually stop the download of a sound file.
Only retrieve one page worth of data per search, rather than looping to get all pages.
Don't show an error in the log window if the user cancelled download.
Request 100 items per page, rather than the default 30.
Fix DOS line endings.
that a Freesound directory doesn't appear in /home/carl
without ever using Freesound.
git-svn-id: svn://localhost/ardour2/branches/3.0@11090 d708f5d6-7413-0410-9779-e7cbd77b26cf
