Added more bob requirements

requirements.txt

 setuptools
 docopt
 ipython
-bob.io.base
+bob.blitz
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+bob.core
+bob.db.base
+bob.extension
+bob.io.base
+bob.io.image
+bob.learn.activation
+bob.learn.em
+bob.learn.linear
+bob.math
+bob.measure
+bob.sp
+gridtk
+scipy
+setuptools
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