Modified env fact gathering to use the native python method

Also updated CHANGELOG for this feature
Merge branch 'bcoca-env_facts' into devel
Merge branch 'ec2_boto' of https://github.com/CharlesBlonde/ansible into CharlesBlonde-ec2_boto
Merge branch 'devel' of https://github.com/tomdymond/ansible into tomdymond-devel
Merge branch 'modprobe-module' of https://github.com/stygstra/ansible into stygstra-modprobe-module
Added version_added string to new modprobe module and CHANGELOG update
Merge branch 'devel' of https://github.com/drybjed/ansible into drybjed-devel
Merge branch 'devel' of https://github.com/pcgentry/ansible into pcgentry-devel
Fixed a bug in the delimiter change for the assemble module
Added a delimiter example and a version_added string for assemble
Merge branch 'feature/host' of https://github.com/resmo/ansible into resmo-feature/host
Fixing some bugs found during testing in the host module
Merge branch 'supervisorctl' of https://github.com/eggsby/ansible into eggsby-supervisorctl
Minor pep8 cleanup
Expand destination path in the fetch action

Fixes #4215
ec2 inventory route53 tagging:
* make filtering more comprehensive
* add checks against missing route53 zone exclusion option
minor spacing cleanup
Merge branch 'devel' of https://github.com/volker48/ansible into volker48-devel
host: added another example
dountil feature commit 1