Contradictory statements about CODATA version

[jaemolihm]

There are two versions of fundamental constants implemented: CODATA 2010 and 2006.

The header of constants.F90 says that the default is CODATA 2010,

wannier90/src/constants.F90

Lines 26 to 29 in 897a527

	!! Values of the fundamental constants are taken from
	!! http://physics.nist.gov/cuu/Constants/index.html
	!! By default CODATA2010 is used (CODATA2006 can be selected
	!! using an appropriate compile-time flag (see INSTALL guide)

while README.install says CODATA 2006 is the default.

wannier90/README.install

Lines 223 to 229 in bf0642b

	* CODATA2006
	Use physical constants from 2006 version of CODATA tables
	(http://physics.nist.gov/cuu/Constants/index.html)
	(Note that this is the default choice if nothing is specified)
	* CODATA2010
	Use physical constants from 2010 version of CODATA tables
	(http://physics.nist.gov/cuu/Constants/index.html)

From the code, it seems that 2006 is the default.

wannier90/src/constants.F90

Lines 78 to 83 in 897a527

	!~ Pick up default value; unfortunately, it doesn't work with indentation...
	#ifndef CODATA2006
	#ifndef CODATA2010
	#define CODATA2006
	#endif
	#endif