Add changelog entry for 1.0.12
Always wait for VPC state to become active before treating it as created.
Mark more URIs as sensitive.
# Changelog
+## [1.0.12] - 2019-08-08
+Always wait for VPC state to become active before treating it as created.
+Mark more URIs as sensitive.
+
## [1.0.11] - 2019-08-06
Suppress invalid update when maintenance window is unset.
Handle lc_collate and lc_ctype database attributes better.
