EMAILPLT-142
- Enable bean portletPreferencesCredentialsAuthenticationService by default in applicationContext.xml.
- Enhance JasyptPBEStringEncryptionServiceImpl to detect when encryption key is at default value and log ERROR message to logs on portlet initialization
- Enhance portlet manager's email preview portlet rich configuration to display a warning when encryption key is at default value
EMAILPLT-142 Enable portletPreferencesCredentialsAuthenticationService

Merge branch 'EMAILPLT-142' of https://github.com/shawnconnolly/email-preview into shawnconnolly-EMAILPLT-142

Modified to fix some errors and improve UI and logging
EMAILPLT-142 Enable portletPreferencesCredentialsAuthenticationService

Merge branch 'EMAILPLT-142' of https://github.com/shawnconnolly/email-preview into shawnconnolly-EMAILPLT-142

Modified to fix some errors and improve UI and logging