Bump version number

Author: mikaem

docs/demos/RayleighBenard/rayleighbenard.do.txt

@@ -287,7 +287,7 @@ The timesteppers are provided with $\psi, \mathcal{L}$ and $\mathcal{N}$, and po
 linear algebra solvers, and solvers are then further assembled under the hood.
 
 All the timesteppers split one time step into one or several stages.
-The classes $cls{('IMEXRK222')}, $cls{('IMEXRK3')} and $cls{('IMEXRK443')}
+The classes ${cls('IMEXRK222')}, ${cls('IMEXRK3')} and ${cls('IMEXRK443')}
 have 2, 3 and 4 steps, respectively, and the cost is proportional.
 
 ===== Implementation =====

shenfun/__init__.py

@@ -29,7 +29,7 @@
 """
 #pylint: disable=wildcard-import,no-name-in-module
 
-__version__ = '4.0.1'
+__version__ = '4.0.2'
 __author__ = 'Mikael Mortensen'
 
 import numpy as np