* fix bug: enable/disable service did not work if rcvar doesn't like <service>_enable (for example mysql-server)
* add workaround for service(8) bug (see PR bin/173454), it must fix #3876
* rewrite enabled/disabled function, now this func-s not based on get_enabled which is quite slow
* move service(8) look up in separate function with memoize decorator and remove direct use service(8)
* feature: service.config can be defined in minion config
* clean double quotes
Add DELETE method to S3
Merge pull request #3924 from techhat/s3

Add DELETE method to S3
Traceback is shown on logging, not on `sys.stderr`.

Also, explicitly state that a traceback follows.
Typo fix for S3
Merge pull request #3926 from techhat/s3

Typo fix for S3
Add the ability to authenticate to S3 directly
Merge pull request #3928 from techhat/s3

Add the ability to authenticate to S3 directly
Include exception message

I ran into a problem and kept getting the warning from verify_socket.
It made me think the port or socket was already in use.
When in fact it was an invalid address when checking
the exception message. "Cannot assign requested address"
I'm simply checking the exception for args and appending
it to the message.
docstring clarification

This commit clarifies the "recurse" param in file.directory states.
fix indentation
Merge pull request #3930 from terminalmage/develop

docstring clarification
Added explicit reference to the Python API docs
Switched hard-coded URL to use the :blob: ref
Merge pull request #3920 from giantlock/develop

Some changes for freebsdservice module
Merge pull request #3925 from s0undt3ch/hotfix/explicit-traceback

Traceback is shown on logging, not on `sys.stderr`.
Merge pull request #3929 from scragg0x/patch-1

Include exception message
Start work on image caching
minor formatting fixes
Copy query function from s3 execution module to salt.utils