use zip for ezodf, be less strict with versions

Author: fuhrysteve

tests/requirements.txt

@@ -5,11 +5,11 @@ rednose
 nose-cov
 python-coveralls
 coverage
--e git+https://github.com/chfw/pyexcel.git@040cd392ec40069ac1a0f6df755694c8216366d8#egg=pyexcel-master
-pyexcel-io==0.0.8
-pyexcel-ods3==0.0.8
-pyexcel-webio==0.0.3
-pyexcel-xls==0.0.7
-pyexcel-xlsx==0.0.7
--e git+https://github.com/T0ha/ezodf.git@2c69103e6c0715adb0e36562cb2e6325fd776112#egg=ezodf-master
+pyexcel>=0.1.7
+pyexcel-io>=0.0.8
+pyexcel-ods3>=0.0.8
+pyexcel-webio>=0.0.3
+pyexcel-xls>=0.0.7
+pyexcel-xlsx>=0.0.7
+https://github.com/T0ha/ezodf/archive/2c69103e6c0715adb0e36562cb2e6325fd776112.zip
 lxml