FIX Tell git which filetypes are binaries

So that Unix line endings do not get replaced by CRLF line endings on Windows systems.
Solves issue with TestSpeStack on Windows.

Author: caspervdw

.gitattributes

@@ -1,2 +1,8 @@
 trackpy/_version.py export-subst
 pims/_version.py export-subst
+*.pkl binary
+*.spe binary
+*.tif binary
+*.mov binary
+*.seq binary
+*.nd2 binary

pims/tests/test_common.py

@@ -722,9 +722,6 @@ def test_metadata(self):
                 d = pickle.load(p)
             else:
                 d = pickle.load(p, encoding="latin1")
-                # unpickling fails on Py3.4, Win7, 64-bit:
-                # UnpicklingError: the STRING opcode argument must be quoted
-
                 #spare4 is actually a byte array
                 d["spare4"] = d["spare4"].encode("latin1")