Bump to v0.10.6

Merge branch 'fix-reloading-strict' of https://github.com/paularmand/…

…mongoengine into fix-reloading-strict and bumped version.

# Conflicts:
#	AUTHORS

Merge pull request MongoEngine#1167 from BeardedSteve/upsert_one

Upsert one

Moved MongoEngine#1042 to the next version in the changelog.

Added python 3.5 to the build.

Bumped version to 0.10.1

Bumped version to 0.10.0

Updated version to 0.8.8

Fix for broken pypi artifact

Released 0.9.0. Fixes MongoEngine#805

0.8.7