Merge pull request #1496 from karlnapf/develop

added log-det framework (partly) to modular interfaces
Merge pull request #1500 from karlnapf/develop

moved more template instanciations from .h to .cpp
improve install - mention how to specify additional library/include paths
add obtain_from_generic() method and improve result printing in CGradientResult class
Merge pull request #1501 from votjakovr/feature/gp_refactoring

Add obtain_from_generic() method and improve print_result() in CGradientResult class
add default constructor to CModelSelection class
Merge pull request #1502 from votjakovr/feature/gp_refactoring

Add default constructor to CModelSelection class
remove unnecessary SGObject parameter from get_parameter_gradient methods in kernel classes
fixes in log-det sampler
Merge pull request #1504 from lambday/feature/log_determinant

fixes in log-det sampler
Merge pull request #1503 from votjakovr/develop

Remove unnecessary SGObject parameter from get_parameter_gradient methods in kernel classes
update authors and news
drop shogun.* structure and import from modshogun instead
Added method "is_sorted()" to SGVector
* plus unit tests for SGVector::qsort() and SGVector::is_sorted().
Merge pull request #1507 from tklein23/sgvector_is_sorted

Added method "is_sorted()" to SGVector
minor fixes in GP framework
Merge pull request #1511 from votjakovr/feature/gp_refactoring

Minor fixes in GP framework
CG, COCG, CG-M solver fixed (log-det)
Merge pull request #1512 from lambday/feature/log_determinant

CG, COCG, CG-M solver fixed (log-det)
added method to compute number of shifts from accuracy and also added
a constructor to set this accuracy. Some minor refactoring otherwise