take dict of config arguments in addition to command line for easier use as module
Add support for jobs with spaces in the name.
Refactor job validation, add job-name validation.

Pull out the common code for validating a job form to a single
method, and make sure that incoming jobs don't have quotes or
backslashes in their names (which would mess with the wrapper
scripts that run the job).
Ignore unneeded fields.
Use xfs for /mnt
Install xfsprogs
Merge pull request #59 from vitillo/master

Ignore unneeded fields.
Calculate median only on a subset of pings.
Calculate median only on a subset of pings.
Merge pull request #60 from vitillo/master

Calculate median only on a subset of pings.
Calculate median only on a subset of pings.
Increase the maximum subset of pings to 100000.
Merge pull request #61 from vitillo/master

Fix out of memory error for mainthread-io job.
Lower the maximum subset of pings to 10000.
Update mainthreadio.py
Reduce memory overhead.
Merge branch 'master' of https://github.com/vitillo/telemetry-server
Reduce memory overhead.
Extract common AMI-creation code.
Merge branch 'refactor_ami_creation'