bump up pybullet version (and c++ version) to 3.17/3.1.7

VERSION

@@ -1 +1 @@
-3.08
+3.17

setup.py

@@ -501,7 +501,7 @@ if 'BT_USE_EGL' in EGL_CXX_FLAGS:
 
 setup(
     name='pybullet',
-    version='3.1.6',
+    version='3.1.7',
     description=
     'Official Python Interface for the Bullet Physics SDK specialized for Robotics Simulation and Reinforcement Learning',
     long_description=

src/LinearMath/btScalar.h

@@ -25,7 +25,7 @@ subject to the following restrictions:
 #include <float.h>
 
 /* SVN $Revision$ on $Date$ from http://bullet.googlecode.com*/
-#define BT_BULLET_VERSION 307
+#define BT_BULLET_VERSION 317
 
 inline int btGetVersion()
 {

src/LinearMath/btSerializer.h

@@ -480,8 +480,8 @@ public:
 		}
 
 		buffer[9] = '3';
-		buffer[10] = '0';
-		buffer[11] = '8';
+		buffer[10] = '1';
+		buffer[11] = '7';
 	}
 
 	virtual void startSerialization()