Experimental code to use haproxy as a transparent proxy.
Add exception handling for checks.d initialization. Fixes #427
Improve checks.d traceback passing for info command
Update agent check command to handle new config.load_check_directory signature
Remove need for checks.d CheckStatus.init_failed field
Rename checks.d CheckStatus.init_failed_exception to init_failed_error
for more consistent naming within checks
Fix to the process check
Merge pull request #500 from DataDog/427b-handle-check.d-exceptions

427b handle check.d exceptions
Merge branch 'master' of github.com:DataDog/dd-agent
Fix conflict
Bump to 3.7.1
Use /usr/bin/env python instead of hardcoding the path.
Merge pull request #511 from DataDog/haproxy-proxy

HAProxy can be used as a high-performance proxy instead of the forwarder
Use old-style string formatter to ensure 2.4 compatibility
Merge branch 'master' of github.com:DataDog/dd-agent
Fixing string formatter
Add buildheroes notification
More reliable way to see if the agent is already running
Switch source install scripts from bash to sh

Allow a better compatibility, especially for systems without bash by
default.
Display a message if the supervisor is already running on source install