Merge pull request #4 from openframeworks/master

updating
editing, small fixes in text
edits, first half of page
Fixing margin collapse - makes vertical spacing between figs, code and paragraphs consistent
Restored indents to the TOC, overflow of headers in TOC is clipped and uses ellipses
Changed TOC active element behavior: instead of altering padding/indent, it bolds the active element
Applied the same TOC indention + hiding of overflow with ellipses to the chapters list
text edits
Merge pull request #85 from Onna-no-hito/master

small edits to foreword and of_philosophy