Support multiple search filters

[Evesy]

Since all Sensu API endpoints support content filtering for multiple attributes I'd like to see this feature be carried across to Uchiwa search, so that I can narrow down results based on multiple dimensions.

Even better would be to extend support for further logical operators, such as OR.

Expected Behavior

A search with multiple attributes, i.e. service:logstash && environment:indexing should return results for clients/events that match both those attributes.

Current Behavior

Only one attribute is supported in search

Possible Solution

For just supporting the AND operator perhaps you could pass several attributes that are comma or space separated and then parsed accordingly..

i.e. service:logstash,environment:indexing

Context

Our clients have multiple attributes to define what they are; service, environment, zone etc. It'd be great to have the option to filter to a specific subset of clients.