Add grouping and groupingInstance fields to job search page (Netflix#829

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Make JobsProperties EnvironmentAware

JobsUsersActiveLimitProperties requires environment awareness in order to react to dynamic changes of property values.
However it is not a bean and as such it is not updated by Spring.
Implement a workaround for the sake of expedience: pass environment down from JobsProperties

Make per-user limit on number of jobs dynamic

Attempt to fetch the per-value limit from the environment, and fall back to the current or default if an override doesn't exist.

Make per-user limit on number of jobs dynamic

Attempt to fetch the per-value limit from the environment, and fall back to the current or default if an override doesn't exist.

Make active jobs user limit value customizable on a per-user basis

The existing mechanism to limit the maximum number of jobs applies equally to all users.
This can result in having to configure its value to a 'known accepted worst case'. And that limit is then applied to everyone else.

The new mechanism allows to set a default value that applies to most users, plus a set of custom limits for individual users.
These limits can be higher or lower than the default.

Make active jobs user limit value customizable on a per-user basis

The existing mechanism to limit the maximum number of jobs applies equally to all users.
This can result in having to configure its value to a 'known accepted worst case'. And that limit is then applied to everyone else.

The new mechanism allows to set a default value that applies to most users, plus a set of custom limits for individual users.
These limits can be higher or lower than the default.

Make Agent create the jobs folder rather than expecting it to exist

Update REST Controller tests to validate date formats in job search r…

…esults

Update REST Controller tests to validate date formats

Upgrade Spring Boot and Platform