BGE: Fix blenderplayer stub.

Add dummy definition of WM_operator_is_repeat.

BGE: Call DNA_sdna_current_init when launching blenderplayer.

Don't calling DNA_sdna_current_init was creating a crash because a global uninitialized
variable was used when reading blender files.

BGE: Fix KX_LightObject python API documentation.

Replace "..attribute::" by ".. attribute::".

BGE: Fix KX_LightObject python API documentation.

Replace "..attribute::" by ".. attribute::".

BGE: Fix T48071: Global logic manager

Previously the logic manager was used as a global variable for SCA_ILogicBrick::m_sCurrentLogicManager,
this request to always update it before run any python script and allow call function like
ConvertPythonTo[GameObject/Mesh]. The bug showed in T48071 is that as exepted the global
m_sCurrentLogicManager is not updated with the proper scene logic manager.
Instead of trying to fix it by updating the logic manager everywhere and wait next bug report to add
a similar line. The following patch propose a different way:
- Every logic brick now contain its logic manager to SCA_ILogicBrick::m_logicManager, this value is
set and get by SCA_ILogicBrick::[Set/Get]LogicManager, It's initialized from blender conversion and
scene merging.
- Function ConvertPythonTo[GameObject/mesh] now take as first argument the logic manager to find name
coresponding object or mesh. Only ConvertPythonToCamera doesn't do that because it uses the
KX_Scene::FindCamera function.

Reviewers: moguri

Differential Revision: https://developer.blender.org/D1913

UPBGE: Disallow shadow buffer render when the lamp is hidden.

It now allow the user to use multiple shadow lamps and hidden the culled lamps.

BGE: Fix invalid operator< for microsoft compiler.

It fixes the strict weak ordering assertion failure, see : https://support.microsoft.com/en-us/kb/949171.
sybren and youle are the author of this commit.

BGE: Fix unconverted character max jump value from old files.

The bug was introduced in 3dd83b, a little conversion in versioning_270.c
was forgotten. Now max_jumps is set as default to 1.

BGE: Use float as default instead of double in Moto library.

Use float in moto instead of double for MT_Scalar.
This switch allow future optimization like SSE.
Additionally, it changes the OpenGL calls to float versions as they are
very bad with doubles.

Reviewers: campbellbarton, moguri, lordloki

Reviewed By: lordloki

Subscribers: brecht, lordloki

Differential Revision: https://developer.blender.org/D1610

BGE: Fix ray cast with unfound property.

To return a valid ray cast result the object must not be NULL and KX_RayCast::RayTest must return true.