Merge branch 'release-2.23.0'
Removing obselete core directory.
Prevent implicit string decode in hmac-v4 handlers. Fix #2033
Merge branch 'release-2.24.0'
Merge branch 'release-2.25.0'
Added support for MFA in AssumeRole.
Fixes #2108 GS generate_url with GoogleAccessId
renamed get_all_vmtypes method to get_all_instance_types to better match actual DescribeInstanceTypes call euca switched to
initial interface for a request hook, sample interface and example for logging
added filename to constructor
Merge pull request #2116 from danielbeamshare/fix-2108-gs-generate-url

Bug fix for Google Storage generate_url authentication. Fixes #2116, #2108.
Added more endpoints for Datapipeline.
Copyright fix. :/
Merge branch 'datapipeline-regions' into develop

Fixes #2121.
Merge pull request #2037 from dangra/2033-bugfix

Prevent implicit string decode in hmac-v4 handlers. Fixes #2037, #2033.
Merge pull request #2120 from zihaoyu/develop

Read EvaluateTargetHealth from Route53 resource record set. Fixes #2120.
Allows use of throughput kwargs with GlobalIncludeIndex - fixes #2055.
DDB queries with GSI now work with a single filter.
Don't pull the security token from the environment or config
when a caller supplies the access key and secret
Merge pull request #2123 from jimbrowne/security-token-env-ignore

Don't pull the security token from the environment or config when a caller supplies the access key and secret. Fixes #2123.