Gtk2-CV-1.61

Changes for version 1.61 - 2017-06-24

work around parser bug in 5.18.1 (-a).
very simple "better than nothing" jpeg cmyk/ycck format decoding.
use ffprobe instead of mplayer to probe video size/type.
switch to using AnyEvent::Fork as provider for the processpool, which ought to save gobs of memory.
much improved async communications with worker processes.
batch expose events together, in an attempt to reduce the amount of expose races in gtk+ (does not fix scrolling races).
create #cpu + 1 worker jobs now, not 1.5 * #cpu + 1 as before.
better shell-quoting: use ""-style for utf-8 filenames and paste as unicode, use bash's $'' syntax for other filenames.
no longer pass a-z from viewer to schnauzer.
properly serialise jobs by priority, instead of executing jobs in parallel on the same path *sometimes*.
escape select-by-prefix menu item labels.
work around more perl unicode bugs.
slightly improved filetype detection.
add "cp" job for external plugins.
work around even more perl unicode bugs that the perl5-porters don't want to fix because of backwards compatibility.
do not stupidly load big video files into memory just to make a thumbnail.
don't modify global $_ in aio callbacks.
make drag-rectangle more visible.
do not enter the last directory on the commandline, if more than one argument is specified.
started using AnyEvent.
space by default activates first file, or first directory, if no files (as opposed to first file or last directory in previous versions).
fix race condition where the schnauzer might stay non-sensitive on fast directory changes.
allow reversal of rotation via .cvrc $REVERSE_ROTATION = 1.
delay initialisation of Gtk2::CV::Schnauzer until first use.
fix a runtime error when starting namecluster with newer gtk's.
do not rely on /dev/shm being world-writable, use /run/shm, /dev/shm and /tmp, in this order.
expect mplayer to sometimes generate more than 2 frames when 1 is requested.
tune video thumbnail generation a bit.
more fixups for "file -i" failing.
properly follows symlinks instead of bailing out.
support perl multicore specification (http://perlmulticore.schmorp.de/) for jpeg loading and image transformations, although nothing takes advantage of this *yet*.
ctrl-up/down in schnauzer tries to move name cluster cursor.
ctrl-shift-T in image window now sets default rotation for subsequent image loads.
ctrl-shift-G in schnauzer now removes thumbnails.
implement j (cycle subtitle) and # (cycle audio track) in mplayer mode.
respect load time (ctrl-shift-T) rotation setting for videos (no clue how to do that at runtime).
print jpeg error messages to stderr.