Added 2 new syslog message match definition files (for postfix and procmail), and the related events definition files.

Cyrille Bollu
Merge branch 'new-syslog-msg' into develop
XML formatting

- Verified XML is valid
- Normalized XML format
XML formatting

- Verified if XML is valid
- Formatting and normalizing with xmllint --format
XML formatting

- Verified XML is valid
- Normalized XML format with xmllint --format
XML formatting

- Verified valid XML
- Normalized XML formatting with xmllint --format
Indentation is correct with 4 instead of 2 spaces
Merge pull request #185 from indigo423/NMS-6798-Add-procmail-and-postfix-syslog-messages-handling-definitions

NMS-6798: Add procmail and postfix syslog definitions
- Added Syslog event definitions for Procmail
- Added Syslog event definitions for Postfix
- Added Syslog uei match definition for Procmail
- Added Syslog uei match definition for Postfix
- Included both event definitions in eventconf.xml
- Included both UEI match definitions in syslogd-configuration.xml
- Normalized XML files with xmlstarlet fo -s 4