General cleanup

Adapt to changes in Ghoul
Make use of TextureManager
Jenkins compile fix

modules/base/rendering/renderableplane.cpp

@@ -165,7 +165,7 @@ void RenderablePlane::initializeGL() {
     glGenBuffers(1, &_vertexPositionBuffer); // generate buffer
     createPlane();
 
-    _shader = BaseModule::ProgramObjectManager.requestProgramObject(
+    _shader = BaseModule::ProgramObjectManager.request(
         ProgramName,
         []() -> std::unique_ptr<ghoul::opengl::ProgramObject> {
             return OsEng.renderEngine().buildRenderProgram(
@@ -184,7 +184,7 @@ void RenderablePlane::deinitializeGL() {
     glDeleteBuffers(1, &_vertexPositionBuffer);
     _vertexPositionBuffer = 0;
 
-    BaseModule::ProgramObjectManager.releaseProgramObject(
+    BaseModule::ProgramObjectManager.release(
         ProgramName,
         [](ghoul::opengl::ProgramObject* p) {
             OsEng.renderEngine().removeRenderProgram(p);