Notifications: edited log messages for emails

- message, which is logging sending of emails was edited, so that there was
  useful information in logfile perun-notif-sended.log
Notifications: fixed removing regex from template

- the regex is now removing also from the cached memory of all templates
Merge pull request #600 from jirmauritz/notification

Notifications: logging of sent emails and fixed bug in removing regex from template
Merge pull request #600 from jirmauritz/notification

Notifications: logging of sent emails and fixed bug in removing regex from template
All changes from 'master' to 'production'
Use new oracle driver 12.1.0.2.0
Merge pull request #601 from zlamalp/oracle

Use new oracle driver 12.1.0.2.0
GUI: allow to skip service configuration

- When creating new facility, allow to skip services configuration.
  When user click on "next" and no service is selected, he is asked
  if he wants to skip service configuration or get back and select
  some service.
Merge pull request #604 from zlamalp/facility

GUI: allow to skip service configuration
CORE: bumped also orai18n driver version to 12.1.0.2.0
Merge pull request #605 from zlamalp/oracle

CORE: bumped also orai18n driver version to 12.1.0.2.0
Set correct permission.
Merge pull request #607 from tauceti2/master

Set correct permission.
GUI: fixed message about sync interval in GUI.
Merge pull request #608 from zlamalp/gui

GUI: fixed message about sync interval in GUI