Add FAQ for close chart and find preferences pane

.. maybe the menu tick should be more blatant.
UI Nits: Sidebar calendar expanding

.. add more minicalendars if the sidebar is expanded -- so
you can show calendars in columns and rows.
Fix Diary view refresh on first select

When youi switch to Diary view no date range is known by the
charts because they have just been created. Since we have a
lazy create we need to resignal the date range after they
are created.

This was already in MainWindow with a call to GcCalendar::refresh
but a recent update optimised that out.
Documentation: Makefile adjusted

.. to add a clean rule
.. to remove need for html version
Deprecate 'Save CP' button on CP curve

Since it is flawed and confusing to almost all users.
UI Tweaks: Splitter pushbuttons problem

.. attempt to resolve issues on Linux Mint reported
by Tom Weichmann.
UI Nits: Splitterhandle cosmetic on Linux

.. no orange focus rectange thanks.
UI Nits: Bubble use antialias

.. looks MUCH better.
UI Nits: RideMetadata clean look on Windows

.. remove the ugly frame.
Datafilter support older versions of Flex

.. just like JsonRideFile and Withings parsers.
Documentation: Manual Chapter 1 completed.

.. bit of an intro, no screenshots.
Documentation: Indentation and Item Lists

.. minor tidy up
Documentation: Manual Chapter 2 Completed

.. very basic quick start guide
.. but doesn't cover train view, perhaps it should
Documentation: Palatino Fonts

Prettify the pdf output to use palatino fonts from the GNU Press.
Also started to work on chapter 3 of the user guide, but it is
far from finished.
Fix foreign characters (e.g.Umlaut) in JSON parser

Thanks to Walter Burki.

Fixes #529.
Fix calendar issue for Italian translation

.. it turns out the translation for Data and Date are both
Data!

.. we now use the first column that matches when seeking special
fields. This is a bit of a hack, but good enough for now.

Fixes #530.
Fix searchbox dropdown alignment

Fixes #528.
Fix color bug "in Italian"

.. actually it was an uninitialized variable bug introduced
by the earlier fix for the calendar model.

Caused by new code checking if an index was -1 before setting
it, but forgetting to initialise it to -1 to begin with.

Fixes #531.
Documentation: Chapter 3 update

.. menu bar documented, still need to do remaining elements of
the main window.