wrong branch, big sorry

This reverts commit e77d08a6.

Fixes BZDNG-416

-> you must recreate your compounds.chemlib database to activate
   this feature using the chemdict_tool

the vector export helper had to be moved to geom because otherwise the geom export depends on base whose headers might not be staged at the time of the compilation of the geom exports

The residue names listed in the SEQRES record get automatically translated to
one-letter-codes. Requires the presence of the rule-based builder to work
properly. Turned off by default

Instead of only checking for the validity of the impl class, the view
classes now also check if the view data is valid. This improves debugging in
cases (when the trying to access, for example, an AtomView whose EntityView has
been deleted.

GetGeometricStart()/GetGeometricEnd() has been deprecated and
will be removed sooner or later.

git-svn-id: https://dng.biozentrum.unibas.ch/svn/openstructure/trunk@2501 5a81b35b-ba03-0410-adc8-b2c5c5119f08

git-svn-id: https://dng.biozentrum.unibas.ch/svn/openstructure/trunk@2438 5a81b35b-ba03-0410-adc8-b2c5c5119f08

git-svn-id: https://dng.biozentrum.unibas.ch/svn/openstructure/trunk@2395 5a81b35b-ba03-0410-adc8-b2c5c5119f08

git-svn-id: https://dng.biozentrum.unibas.ch/svn/openstructure/branches/new_shell@2368 5a81b35b-ba03-0410-adc8-b2c5c5119f08

git-svn-id: https://dng.biozentrum.unibas.ch/svn/openstructure/trunk@2354 5a81b35b-ba03-0410-adc8-b2c5c5119f08

Fixes BZDNG-111

git-svn-id: https://dng.biozentrum.unibas.ch/svn/openstructure/trunk@2220 5a81b35b-ba03-0410-adc8-b2c5c5119f08

git-svn-id: https://dng.biozentrum.unibas.ch/svn/openstructure/trunk@2135 5a81b35b-ba03-0410-adc8-b2c5c5119f08

some debug and fixes for mae io handler
added residue chemclass to python


git-svn-id: https://dng.biozentrum.unibas.ch/svn/openstructure/trunk@2125 5a81b35b-ba03-0410-adc8-b2c5c5119f08

git-svn-id: https://dng.biozentrum.unibas.ch/svn/openstructure/trunk@2101 5a81b35b-ba03-0410-adc8-b2c5c5119f08

git-svn-id: https://dng.biozentrum.unibas.ch/svn/openstructure/trunk@2072 5a81b35b-ba03-0410-adc8-b2c5c5119f08

git-svn-id: https://dng.biozentrum.unibas.ch/svn/openstructure/trunk@2068 5a81b35b-ba03-0410-adc8-b2c5c5119f08

some tinkering around with the offscreen rendering again, half stable only
added automatic centering on first GfxObj that is added to the scene
added temporary interface to the shader api until we have proper material params
added direct char param for python Residue.SetSecStructure (too many types can be evil, too)




git-svn-id: https://dng.biozentrum.unibas.ch/svn/openstructure/trunk@2067 5a81b35b-ba03-0410-adc8-b2c5c5119f08

rule-based and heuristic build are now relying on the same implementation for backbone torsion angles
-removed isp torsion completely
-fixed omega torsion implementation 
+added check for res.IsPetideLinking() before adding backbone torsions


git-svn-id: https://dng.biozentrum.unibas.ch/svn/openstructure/trunk@1896 5a81b35b-ba03-0410-adc8-b2c5c5119f08

-added GetIspTorsion to API and exports
-implemented Omega torsion
-added GetOmegaTorsion to API for and exports

git-svn-id: https://dng.biozentrum.unibas.ch/svn/openstructure/trunk@1891 5a81b35b-ba03-0410-adc8-b2c5c5119f08

git-svn-id: https://dng.biozentrum.unibas.ch/svn/openstructure/trunk@1742 5a81b35b-ba03-0410-adc8-b2c5c5119f08