* Deprecation: planned removal of .message() and .getMessage() methods
* Deprecation: planned removal of old MolHash code
* document deprecations
* output the diffs when the psql tests fail
* remove .message() from SWIG wrappers
note that the KeyError doesn't work properly. We should clean up the the exceptions here anyway
* typo
* add overrides for what()
* translation fot KeyErrorException; update tests
* Switch all exceptions to `const char *` as a return type from message() (#4)
* switch return type of message() from std::string to const char *
* adjust one test to the new return type from message()
remove unnecessary verbosity from some tests
* fix cartridge build: update call to message().c_str()
* rebase agains master; fix another issue in cartridge build
* add deprecation note for message() and getMessage()
* amend Release notes
Co-authored-by: Greg Landrum <greg.landrum@gmail.com>
* add AtomValenceException
* refactor a bit and add KekulizeException
* add copy ctor and copy() method
* add detectChemistryProblems
* add getType() method
want to be able to get the type of the exception without requiring doing a bunch of dynamic casts
* first pass at exception inheritance/translation
needs some cleanup and expansion, but this does pass all tests.
* cleanup and finish the python wrappers for the new exceptions
* make sure things are truly polymorphic
* wrap shared_ptrs of the new exception types
* expose DetectChemistryProblems()
* get the java wrappers building again
* transfer those changes to the c# wrapper
* add detectChemistryProblems()
and deal with the fun fun exception inheritance things that ensue
* response to review
