relax SVN archive

The default value of the escalate argument of the Check.__call__() method is now 2.

This will cause the calls to the check_*() function/objects to default to raising RelaxErrors.

Fixes for the lib.checks.Check object.

The __call__() method keyword arguments **kargs needs to be processed inside the method to strip out
the escalate argument.

Implemented the writing out of parameter values between comparison of NI level.

Task #7826 (https://gna.org/task/index.php?7826): Write an python class for the repeated analysis of dispersion data.

Updated the pipe_control.spectrometer.check_*_func() functions to use the new design.

Changed the design of the Check object in lib.checks.

The design of the checking function to call has been modified - it should now return either None if
the check passes or an instantiated RelaxError object if not. This is then used to determine if the
__call__() method should return True (when None is received). Otherwise if escalate is set to 1,
the text from the RelaxError object is sent into a RelaxWarning and False is returned. And if
escalate is set to 2, then the error object is simply raised.

Alphabetical ordering of all functions in the pipe_control.pipes module.

Updated the Bmrb.test_bug_22703_display_empty system/GUI test.

The RelaxError type is now different.

Converted the pipe_control.spectrometer.check_*() functions to the strategy design pattern.

These are now passed into the lib.checks.Check object, and the original functions are now instances
of this class.

Created a special Check class based on the strategy design pattern.

This is in the new lib.checks module. The class will be used to simplify and unify all of the
check_*() functions in the pipe_control and specific_analyses packages.

Modified the Bmrb.test_bug_22703_display_empty system/GUI test to catch the RelaxNoFrqError.