1.58:
-----
 * Better catch empty HTTP_REFERER

1.57:
-----
 * Prepare for Serendipity Styx 4.4.0 - expandable hooked sidebar links

1.56:
-----
 * Improve backend markup indents for Serendipity Styx 4.3.0

1.54
----
 * Fix strtotime() returncode checkup (since PHP 5.1.0)

1.53
----
 * Secure some target _blank links by living standard rel="noopener"

1.52
----
 * Serendipity 2.3 compatibility:
    - Proper evaluation of allow_comments/moderate_comments booleans
 * Adds ability to specify multiple valid e-mail addresses by semicolon
 * PHP7 compatibility:
    - use quoted_printable_decode instead of a preg-e rule
    - Use foreach instead of while(list(...) = each())

1.51:
-----
 * Removed very old API deprecated and removed function call
 * Fix some lang typos

1.50:
-----
 * Fix a wrong path concatenation double slash

1.49:
-----
 * Update class.mimedecode.php to Mail_mimeDecode-1.5.6
   mimeDecode.php 337165 2015-07-15 09:42:08Z

1.48:
-----

* Fix PHP7 incompatibility

1.47:
-----

* Set some Plugin consistencies
* Use API for lang includement - extend required Serendipity version

1.46:
-----
* Updated translation (german), fixed some english descriptions

1.45:
-----
* Fixed encoding mail subject in blog's charset by default not ISO-8859-1

1.44:
-----
* Added debug_file option as new config string

1.42:
----

* Also add [attach:X] syntax to text attachments, where X represents the number of the attachment (starting with 1)
  that should be positioned inline
  
1.41:
----

* Now able to parse HTML inline pictures and replace them with attached files

1.37:
----

(By danst0)
* Change ereg to preg_hatcm
* Added now flag to indicate if thumbnail or full image is posted

1.36:
-----

Allow config options for Subfolder-Maildir storage and debugging.
Increase attachment duplicate counter to prevent problems when more than
one mail with attachment is received in the same second.

1.35:
----

* Detect format=flowed
* Fix bug that did not restore "extended body" correctly for next mail,
  might lead to mail mingling with next entries.

1.34:
-----

* Added ability to recognize mails send as a reply (Re:/Aw:/Wg:) to be posted as blog comments rather than entries
* Added ability to recognize the date of a mail to import
* Added ability to enabled $debug flag to log messages from cronjob outputs.
* Recognize some basic NON-Html markup (->, >>, => etc.) to be escaped.
* Remove any CR/LF inside <embed> and <object> tags, and within any HTML Tag.
* Replace HTML inside comment mails with BBCode markup
* Detect us-ascii charset as ISO-8859-1.
* Store uploaded files within a YEAR/MONTH subdirectory structure.
* Treat inline attached images to be put within the extended mailbody after the first.

1.33:
-----

Improved string decoding functions to not only work with UTF-8 <-> ISO.
Thanks to B. Tittelbach
(https://sourceforge.net/tracker/?func=detail&atid=542822&aid=2831116&group_id=75065)