* Now the <TEMPERATURE>-tag inside the <SAMPLES>-section is supported

* Improved calculation of font used for the axis labels

* Display the used gtkmm-version in about-requester.

* Fixed a tiny bug with marker handling. Now the marker is again invisible
  when udcfview displays a new dive.

* Added @ as a valid character inside of <PERSINFO>-Tag (Observed by "Patrick R. Schmitt"
  <pschmitt@physik.uni-kl.de>). Now  the regular expression 
  [a-zA-Z0-9\+\-\.@.,:;=&\!$\~\(\)\*\ ]+ describes a valid <PERSINFO>-string.

* Added support for <ALARM>ERROR</ALARM> (New tag).
