hdf5_der

[svn-r26928] 2 updates from v18:
1) Bugs:
The configure summary (libhdf5.settings) was missing from the configure output.

Solution:
Append the configure summary to the configure logfile if configure succeeds.

2) Added method to install the Mac OSX DMG file by line commands.
Group all install method into a function call for easier maintenance.

Tested: Linux (jam, platypus), Mac (osx1010dev)