v11 - New threading model, more metrics and keys within files

Adds

• New threading model (optional with -t) to have a thread for each test case
• More metrics - additional hem internal metrics
• Support for using specific keys in a file based discovery (enabled_key / key)

v10.9 - No redirects

Enable testing for 302/301 as an expected response and not follow them

Use own user agent

v10.8

Adding user agent with version

Fix bug in graphite driver

Fix issue in graphite driver causing missing last metric in set.

Some logging is nice

v10.6.6

Remove explicit call to setup_logging()

Clean output

v10.6.5

Don't fail on coveralls not working

Clean up output

v10.6.4

Remove package list from output

v10.6.3

Merge branch 'master' of github.com:rickymoorhouse/hem

v10.6.2

fix SyntaxError

Adjustment to body check feature

Merge pull request #17 from rickymoorhouse/bodyLast

Only check body if otherwise successful