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Conflicts:
	CHANGES/v2.3.txt

Made some regtests explicitly dependent on cregex

Less digits

This flags allow to enable/disable search for libraries.
It is on by the fault, and it can be disabled using
./configure --disable-libsearch
This is useful when installing within package managers
such as macports to make sure that only libraries explicitly
listed as LDFLAGS are linked.

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Testing more MOLINFO groups

List of modules used in the Portfile is now generated automatically
to better deal with user contributed modules. Variants are called
mod_xxx
where xxx is the module name.

In addition, a variant +allmodules has been added to enable all modules.
This variant is used in the travis file to make sure all modules are tested.

I am not sure it is worthwhile to also automatize other variants, so I think
this closes #193

This reverts commit 37001778.