[SAC] Apache settings update in projects VM


Since the projectsVM (http://wiki.osgeo.org/wiki/ProjectsVM) suffered from too
many open http connections (1300 while www.osgeo.org had 53 at the same time)
I have sync'ed the following apache settings in projectsVM to those of osgeo1:

#Timeout 300
Timeout 120

#KeepAliveTimeout 15
KeepAliveTimeout 7

We should continue to monitor the number of open http connections, but it
decreased at least.