Add mib generation for subscriptions
Add report propagation to SNMP manager

Test included which verifies that reports are received by the manager
and export disabling works as well.
Support SNMP inform for exometer reports

- adds export of all counter datatypes
- allows subscriptions to be exported over SNMP as inform messages
Fixing some type specs and old API usage
Fix unsecure generation of atoms and naming in SNMP example config
Use exometer_proc for reporters instead of custom protocol
Merge pull request #16 from Feuerlabs/tb-cleanup-typespecs

Fixing some type specs and old API usage
Merge pull request #14 from Feuerlabs/tb-snmp-notifications

SNMP Export Notifications
Fix relative links and link to overview image
use setup to find app-specific predefs
setup dep to uwiger
add test/test_defaults.script
Add tests for predefined entries using setup
Ensure tests work with older OTP versions
Merge pull request #18 from Feuerlabs/uw-setup-predefs

Allow specification of predefined entries and metric types through setup.
Remove generated header file
Don't compile the mib template using rebar
Make SNMP export solely configurable as a reporter.

This way SNMP support is completely self-contained.
Updated copyright year
Updating documentation of snmp reporter.