[Dotproject-cvs] gantt chart - php mem limit

[Gregor E. <gr...@or...>]

with my recent bug fixes in gantt charts I also added a new config for soft-resetting the php memory limit for gantt chart drawing.

the php mem limit is temporarily reset at the begin of file projects/viewgantt.php to the dP config var value, the gantt is drawn and then it is restored to the original php.ini value at the end of this file again. 
if this behaviour is good we perhaps expand this to the tasks module as well.

gRegards