tighter widow/orphan penalties
subclassed LabbReport to allow different report styles
implemented "summary" labb report
cgi lookup: move outside report base class
LABB report: allow choice of "report style" from cgi form
results summary: retain chemical filtering rules, but adopt visual appearance of brief report
pdf generation errors: dump pdflatex log to http
results summary: use all available standards
HTML report: use new generate-to-file mechanism
display "missing" message rather than crashing when no standards description available
added "full style" report
summary report: include chemical even if only some levels exceeded
honor "la only", "nc only" selections
added more standards descriptions
titlecased chemical names
bugfix: do not crash when chemical listed only in some standards