Logfetch improvements and bug fixes

bump logfetch minor version

Merge pull request HubSpot#1382 from HubSpot/max_per_req

Add maxTasksPerOffer at request level

Merge pull request HubSpot#1385 from HubSpot/logfetch_start_end_times

(logfetch) Use start/end time metadata if available

[maven-release-plugin] prepare release Singularity-0.13.0

[maven-release-plugin] prepare release Singularity-0.12.0

Merge pull request HubSpot#1298 from HubSpot/reconcile_slaves

Updates to slave information and reconciling slaves

Merge pull request HubSpot#1289 from HubSpot/logfetch_deleted_requests

Don't rely on Singularity active requests list

[maven-release-plugin] prepare release Singularity-0.11.0

bump logfetch to 0.27.2