extracting spans in prepareJson.py more efficiently, by constructing an object of alignTable for each description once, then call mapSpan() for each span
Merge branch 'master' of https://github.com/sfu-natlang/lensingwikipedia
Merge pull request #95 from sfu-natlang/refactoringbuildindex

Merging refactoringbuildindex into master
new avherald about page
Merge branch 'master' into avherald
Switched avherald to use the new about page for it.