OnlineLinearMachine::get_w(): Copy weight before passing them to SGVector to prevent double-free on destruction.
Fix possible memory leak in StructuredOutputMachine
Merge pull request #1197 from iglesias/feature/structure_fix_leak

Fix possible memory leak in StructuredOutputMachine
update documentation of gp framework
Merge pull request #1199 from votjakovr/feature/gp_refactoring

update documentation of gp framework
Merge pull request #1196 from tklein23/double_free_hotfix

Fixed double-free when using "SGVector<float32_t> OnlineLinearMachine::get_w()"
Rational approximation base added (log-det)
individual job result aggregator added (log-det)
get/set-diagonal for matrix operators added