Add support for updating identities on each login
Correcting for PR comments + change rcmail to rc
Improve load_config() so when called many times it will read config file only once
Correct load_config() return value with improvement in last commit
Give higher priority to the 'subject' parameter from request or plugin
Fix possible issues in skin/skin_path config handling (#1490125)
Another correction for PR comments
Remove redundant default
Merge pull request #243 from bnogas/master-p6

Add support for updating identities on each login
CS fixes and bump version number after PR merge
Don't trust get_folder(), use $MESSAGE->folder if available
More get_folder() -> $MESSAGE->folder
Fixed typo
CS fixes
Add Dockerfile.
Add environment variable reading to configuration.

Docker prefers to pass parameters via environment variables.  This
allows the environment variables to be checked and if a value exists it
will override the default.
Add SSL support to Dockerfile.