News full changelog

- In pref windows, some setting changes (like 'read n items per feed') need the stream to be reloaded, so now we use:
current_feed();
instead of:
update_pixmap_from_opened_stream();
- Fix 'quick feed picker (selected feeds) closes when pointer leaves win area' and implement it as a setting.
- In pref window, disabling screen limits updates win_y and win_w limits on the fly.
- Max options number now set to 128.
- Pref win changes:
- remove 'system' colors buttons
- increase gtk table row spacings
- If gradient bg set, compute text shadow color no longer from bg_color but from gradient.
- Quick feed picker (selected feeds) closes when pointer leaves win area. Plus: quick feed picker opened *also* by Ctrl + mouse right-click.
- Complete RSS 1.0 support (Closes: #688099) and fix/rewrite a few things in feed parser code.
- In tickr_feedparser.c: ending 'n' removed when adding string to XML_DUMP (left when adding string to XML_DUMP_EXTRA).

- Complete quick_feed_picker() stuff in tickr_quickfeedpicker.c.
- Swap win32 log files every hour to prevent generating huge ones. Finally fix an old bug on win32.
- Several little improvements/fixes in tickr_feedpicker.c.
- New type FList (feed doubly-linked list) and associated functions f_list_*() in tickr_list.c. Will replace confusing: char url_array[] / char *p_url[] / char **p_url stuff in: tickr_main.c, tickr_feedpicker.c, tickr_opml.c and tickr_resource.c.
- Renaming 2 src files: - tickr_rss.c -> tickr_feedparser.c - tickr_rsswin.c -> tickr_feedpicker.c
- Add new func: win_with_progress_bar() (in tickr_otherwins.c) and use it in feed list import thing (in tickr_opml.c) instead of not-spinning-as-expected win_with_spinner().
- When opening the feed picker dialog, highlight and scroll to current feed, plus several extra fixes and tweaks (in tickr_rsswin.c.)
- Add new func: highlight_and_go_to_row() (in tickr_quickfeedpicker.c.)
- Add new func: get_feed_index_in_selectio

· Implement importing/exporting URL list in OPML format.
· Add resource properties window.
· Implement 'icon in taskbar' and 'ticker visible on all desktops' new parameters.
· Now return all libxml2 error messages.
· UTF-8 encoding stuff check / code rewriting.
· Meaningful error messages instead of 'error code n' reported after parsing XML file not in RSS 2 format.
· Fix window transparency bug: transparency value falsly reported as invalid when set to 10 (so not used.)