Track inner HTML for each frame of the parser's  stack in order to be able to collapse nested empty elements.  #10
#10 Updated documentation.
Increased version number  #10
Fixed error and added a negative test  #10
Removed unused parameter #10
Remain compatible with older versions which expose node text to filters  #10
Update README.md
Update README.md
Include child nodes text into parent node text  #10
Fixed tests #10
Fixed tests #10
Test #10
Removed innerHtml because inner text is sufficient to detect empty tags #10
Update README.md

#10 Removed innerHtml because it is redundant.
allowedClasses option
merge
Merge branch 'sgri-master'