Updated meta information, reformatted code

Update README.md

http -> https

Bumped up the revision number

Fixes #14 API change for startSectionEdit

gets rid of error: startSectionEdit: $data "plugin_bpmnio" is NOT an array!
Fixed as suggested in https://www.dokuwiki.org/devel:section_editor

Upgraded to bpmnio v0.20.5
Fixed getBBox call (impacted rendering in firefox)

Bumped up version

Version updated to avoid wrong status in plugin manager

Closes #12: Toolbar button for adding a diagram with sample content

Closes #10, Updated bpmnio js library to version v0.19.0

Added Readme

Fix #8: Add automatically scrollbars in case of big diagrams

Fix: unable to edit section (logo overlay)

Introduced a right margin

Fix #3 by by adding margin space to allow clicks

Added a small margin to the right of the bpmnio diagram. This solution is not so nice however...

Fix: base64 decoding in JS for non ASCII chars

Fix: properly decode the base64 encoded string

UTF-8 encoded into base64 did not decode well. Characters were destroyed. Javascript needs some more layers of transformation to get it right.

Fix: HTML entities inside XML are now usable

Decode base64 data (lossless)

Encode data using base64

Added a screenshot for the plugin

Improved: Refactored the code for the viewer

Improved: Adjusting the viewbox to recenter the diagram

Integrated the renderer for in-page, embedded bpmn xmls

Adopted the same license as bpmn.io
(MIT+logo conservation)