added install_requires to setup.py.

setup.py

@@ -9,5 +9,11 @@ setup(
     license='',
     author='Rafael Ostertag',
     author_email='rafael.ostertag@math.uzh.ch',
-    description='Import Excel Workbook into MySQL Database'
+    description='Import Excel Workbook into MySQL Database',
+    install_requires=[
+        'MySQL-python',
+        'pyexcel',
+        'pyexcel-xls',
+        'pyexcel-xlsx'
+    ]
 )