Changed file name case.
Moved CHANGELOG.md to project root folder from su_shapes
Cleaned up Ruby coding styles according to GitHub Ruby Style Guide. Added Style cleanup.txt file annotating changes made. Updated file version reference in su_shapes.rb to v1.4.4 (internal numbering)
Further style/code fixes. Changed default number of segments per quarter circle in Dome and Sphere from 5 to 4 for consistency with number of circle segments in Cylinder, Cone, Tube, and Torus. Updated internal version number to 1.4.5 in shapes.rb and su_shapes.rb.
Removed Styles cleanup.txt from src/su_shapes folder
Replaced its contents by a new issue 'Code cleanup issues - fixed'
DOCUMENTATION.md added (adapted from Style cleanup.txt)
Recommitted - sent to wrong destination (origin) first time
Minor edit to DOCUMENTATION.md
Removed redundant files Draw Parametric Shapes.pdf and CHANGELOG.md from src/su_shapes folder (CHANGELOG.md had already been copied to GitHub root folder, and the PDF replaced by DOCUMENTATION.md also in root folder)
Updated DOCUMENTATION.md. Updated version number in su_shapes.rb and edited comments in lines 511-514 in su_shapes.shapes.rb. Committed and generated new Pull request
Merge pull request #18 from johnwmcc/master

Updated documentation, internal version number and comments