Fix array bound SEGV

.. double to int conversion rounded up and caused an
   array bounds segv. just added 1 to the initial resize
   of the array to avoid.

.. annoying since I performed considerable testing of the
   metric histogram on Mac, but this crashed almost immediately
   on Linux. Bah.
Metric Distribution

Show BlankState when no results for date selection.
Update v3 release notes

.. to include metric histogram plot.
Fix FitRideFile 'hangs'

We now only interpolate for gaps less than 30 minutes since
some corrupt files may be longer (or forgot to press stop).
Choose Columns Matrix on Netbooks

The choose columns matrix is to big for a typical notebook display.
This little update makes it wider and not so tall.
AllPlot: Save last showTemp value for ridePlot
Column Chooser Still Too Big

.. made font smaller so now just about squeezes onto
   a netbook 800x600.

.. we need to make it a scrollarea so it can be much
   smaller.
Fix urls in FAQ document
Merge branch 'master' of github.com:GoldenCheetah/GoldenCheetah
Visual signpost for search/filter

.. scope bar colors update
.. needs fixing up for the Mac