Don't install documentation and examples.

Index: xlrd-0.9.2/setup.py
===================================================================
--- xlrd-0.9.2.orig/setup.py	2013-04-05 16:47:21.000000000 +0200
+++ xlrd-0.9.2/setup.py	2013-06-11 15:15:57.074385248 +0200
@@ -27,14 +27,6 @@
     scripts = [
         'scripts/runxlrd.py',
         ],
-    package_data={
-            'xlrd': [
-                'doc/*.htm*',
-                # 'doc/*.txt',
-                'examples/*.*',
-                ],
-
-            },
     description = 'Library for developers to extract data from Microsoft Excel (tm) spreadsheet files',
     long_description = \
         "Extract data from Excel spreadsheets (.xls and .xlsx, versions 2.0 onwards) on any platform. " \