opencensus 0.7.6

opencensus 0.7.6

on Python PyPI

• Updated azure module (#773, #767)

• Released datadog module (#793)

opencensus-ext-azure 1.0.1

• Validate instrumentation key in Azure Exporters (#789)
• Add optional custom properties to logging messages (#822)

opencensus-ext-datadog 0.1.0

• Initial version (#793)