Use html parser 'beautifulsoup' to replace html tags which not supported by reportlab pdf.
'pip install bs4' required.
Fixed nested ol lists and unicode warning.
New requirement: beautifulsoup4
HTML support for reportlab.
Move parse html code into new function. Added missing html support in pdf for motion reason.
Added version number for bleach and beautifulsoup4. Moved to core requirements block.
Added bs4, bleach and html5lib requirements to portable build script. Updated portable readme for 1.4.
