Fixes:
- fixed markup issues (margins between code blocks when rendering Confluence pages)
Features:
- allow to disable *Source Commit: ...* line for Confluence pages by adding *no_commit_url: true* to Confluence's page config
- allow forcing specific code cell inputs to Confluence by markig them with *dstrace_confluence_force_include_input* metadata tag
- allow to skip "nbconvert to python" step for specific Confluence pages by adding *no_conversion_to_python: true* to a Confluence page config
- introduce glob expresion argument for *force_update_confluence_pages* that allows to specify notebooks to update using standard shell-like mask syntax
Other:
- add some helpers for testing and debugging during development
- use vendoring strategy for nbconflux https://github.com/Valassis-Digital-Media/nbconflux.git