* Add a new socketutil module with a few helper functions that allow us to:
* Always use a sane User-Agent (previously, only Wikipedia did so)
* Set timeouts in an almost sane manner. Doing it explicitly prevents an interaction with KOSync that does crazy stuff I don't even want to try to understand.
* Unified said timeouts based on the request's intended usage (except for Wikipedia, which already had meaningful timeout values).
* Stopped using LuaSec directly, LuaSocket defers to LuaSec sanely on its own. Everything now transparently supports HTTPS without code duplication.
* Re-implement the PB fb fixup insanity
It's apparently still necessary on a number of devices.
Fix#7072
* Bump base
(Fix FBInk on the same devices, for another reason).
* Unify logging with AutoSuspend (e.g., keep ourselves to showing the delay in seconds, not the raw timestamp, as that's way harder to interpret, and the RTC module and/or logger will do that for us when the time comes).
* Speaking of, minor revamp of RTC related logging to make it more human-readable.
* On Kobo, if we hit the unexpected wakeup limit, re-engage AutoSuspend's *suspend* check, so that the device has a chance to poweroff instead of being kept awake.
* Hold "Wi-Fi connection" to show network connection options.
* Honor backend connections (e.g., if wpa_supplicant found a matching AP in its own config first).
* When user clicks "Wi-Fi connection" in menu, only prompt if state is ambiguous.
* Screensaver: Unbreak screensaver_stretch_images
We don't have real ternary operators in Lua, if the second argument evaluates to false, it doesn't work.
Invert the test to avoid this pitfall.
(c.f., http://lua-users.org/wiki/TernaryOperator).
Fix#7402, regression since #7371
* Free a few similar constructs (incidentally, some of 'em also tweaked in #7371 ^^).
* LuaSettings/DocSettings: Updated readSetting API to allow proper initialization to default.
Use it to initialize tables, e.g., fixing corner-cases in readerFooter that could prevent settings from being saved.
(Fixes an issue reported on Gitter).
* LuaSettings/DocSettings: Add simpler API than the the flip* ones to toggle boolean settings.
* Update LuaSettings/DocSettigns usage throughout the codebase to use the dedicated boolean methods wher appropriate, and clean up some of the more mind-bending uses.
* FileChooser: Implement an extended default exclusion list (fix#2360)
* ScreenSaver: Refactor to avoid the pile of kludges this was threatening to become. Code should be easier to follow and use, and fallbacks now behave as expected (fix#4418).
* OPDS: Don't save an empty username.
That causes LuaSockets to try Basic auth, which is useless (and may or may not be problematic for some servers).
* Attempt to explicitly request non-compressed content.
Some servers may still refuse to obey, though.
They're breaking RFC2616 (a.k.a. HTTP/1.1) by doing so, though, meh.
* Let LuaSocket do its job.
It already handles setting up the Host header, as well as Basic authentication if both username & password are set.
Instead of piggybacking on InputContainer's onInput trickery for hold_input & tap_input.
Also, don't flag the buttons from that InputDialog as vsync, because that was stupid ;).
Fix#7357
