Remove some old references to tupak

bilby/__init__.py

@@ -2,7 +2,7 @@
 Bilby
 =====
 
-Bilby: a user friendly Bayesian inference library.
+Bilby: a user-friendly Bayesian inference library.
 
 The aim of bilby is to provide user friendly interface to perform parameter
 estimation. It is primarily designed and built for inference of compact

setup.py

@@ -55,7 +55,7 @@ version_file = write_version_file(version)
 long_description = get_long_description()
 
 setup(name='bilby',
-      description='The User friendly Parameter estimAtion Kode',
+      description='A user-friendly Bayesian inference library',
       long_description=long_description,
       url='https://git.ligo.org/Monash/bilby',
       author='Greg Ashton, Moritz Huebner, Paul Lasky, Colm Talbot',