Allow html tags for formatting text
Allow html tags for formatting text

* allow html tags useful for formatting text: u, b, em, i, table, th, tr, td

* ignore kl_vkbd_parsed attribute

* add pmbx_context and more comments

rvarshney/code-dot-org,pickettd/code-dot-org,rvarshney/code-dot-org,rvarshney/code-dot-org,rvarshney/code-dot-org,pickettd/code-dot-org,rvarshney/code-dot-org,pickettd/code-dot-org,pickettd/code-dot-org,rvarshney/code-dot-org,pickettd/code-dot-org,rvarshney/code-dot-org,pickettd/code-dot-org,rvarshney/code-dot-org,pickettd/code-dot-org,pickettd/code-dot-org