Conflicts:
	CMakeLists.txt

the python atexit work as expected.

This function allows to extract the list of positions
of all the atoms in a given frame
I also added the export for it and for CoordGroupHandle::AddFrame

This fix simply keeps the last 5 digits of the atom numbers

to check for breaking of the in_sequence property.
Added an SetInSequence() function to the ChainHandle to check and update
the in_sequence property

fixed vertical scrollbar in message widget for the case of a single message that is bigger than the height of the widget

adding the function RunTests to each python unittest allows that the
test is executed either with the default TestRunner or an XMLTestRunner
for producing an XML output file. With no command line argument, the
default Runner is used (same behaviour as previously), with 'xml' as
the first argument, the XMLTestRunner is used.

Fixed a problem with asking for a parameter file even without structural checks, set the default tolerance level to 8.0 stddev

- show legend if specified
- allow setting of y_range when plotting only 1D data
- allow setting of x and y axis labels when plotting only 1D data
- allow setting an empty string as title