intial numbering work for inline equation targets
xsl update to generate equation link-target id in html
regeneration of css files for numbering less file change for subfigure and equation link target testing
regeneration of CSS file for testing change in numbering less for tesitng subfigure and equation link target
refactoring of inline equation code to use more elegant x-link function
Merge pull request #117 from Connexions/precalculus-hotfix2

Added functionality to PreCalculus to allow the ability to have equation numbering be used as link targets