numbering fixes for practice and homework sections and subsection counter for bringing it together
fixes for stats lab figure sizes and utilization of parent counter for subsection questions
remove red color for fixed subsection problem numbering
added color variable to statslab figure and chunked sections to be supressed from eoc onto one line
Merge pull request #121 from Connexions/statistics-eoc-fixes

Fixes for EOC numbering for Statistics with subsections and font size issue w/Stats Lab