Widen LineWeight Selector.

Imagemagick: convert lineweight*.png -strip -resize 512x128\! lineweight*.png
Require Minimum WVGA.
libembroidery arduino fixes and additions.
libembroidery arduino barebones example.
Update URL.
Update TODO file.
embFormatList

initial introducing embFormatList & embFormat (get info by function).
This is an octopus merge from pascal4, but only C codes. No
delphi/lazarus code is changed here.
test all C project.

shared lib project & converter & embroidermodder2.exe were successful
compiled.
meaning these were running well
Save Text Object as stitches.
Merge branch 'master' of https://github.com/x2nie/Embroidermodder into x2nie-master
RealRender bugfix for Qt5.
libembroidery refactoring & cleanup.
libembroidery emb-format header cleanup.
libembroidery error logging cleanup.
remove obsolete code.
Updated .travis.yml file.
Corner Widget Bug Fix.
libembroidery-convert usage output tweaked.
Move DST comment from header to source file.
Updated .gitignore file.