Modified UI and added rule's page

Jira issue: APPSEM-7
Merge pull request #4 from glatorre/APPSEM-7

Modified UI and added rule's page [APPSEM-7]
Introduced functionality to configure sensors

Jira issue: APPSEM-8
Merge pull request #5 from glatorre/APPSEM-8

Introduced new functionality to configure sensors [APPSEM-8]
Changed notation for sensors and actuators