Better centering of the handles on the spline.
Merge pull request #631 from monkeyiq/2013july/largesizeotherpoints2

Better centering of the handles on the spline.
Ability to define the ` key that causes toggle preview in charview

The key must not have a qualifier at the moment. No hard reason for this,
can be changed if desired.

This also paves the way for any other parts of the code which expect a fixed
key to do something special to reuse this system so that that fixed key can
instead be set by the user instead of hard coded.
Merge pull request #634 from monkeyiq/2013july/usersettablepreviewkey

Ability to define the ` key that causes toggle preview in charview
Scale the BCP and selected BCP with EditHandleSize
Merge pull request #635 from monkeyiq/2013july/scalebcp

Scale the BCP and selected BCP with EditHandleSize
Add ./configure access to some new CPUs without having to bump 2.68->2.69

See issue #557 refering to aarch64 support.
Use latest libuninameslist as default if you have it.
Hush a warning: suggest parentheses around comparison in operand of '=='
More credits, stopped reading at git 2003-04-05 for now...

..also include some very recent authors before making the next prep+build