reading metadata still works if library not installed, closes #304

glymur/lib/config.py

@@ -144,7 +144,7 @@ def glymur_config():
         lst.append(load_openjpeg_library(libname))
     if all(handle is None for handle in lst):
         msg = "Neither the openjp2 nor the openjpeg library could be loaded.  "
-        raise IOError(msg)
+        warnings.warn(msg)
     return tuple(lst)
 
 def get_configdir():

glymur/lib/test/test_printing.py

@@ -17,7 +17,7 @@ import glymur
 from . import fixtures
 
 @unittest.skipIf(sys.hexversion < 0x03000000, "do not care about 2.7 here")
-@unittest.skipIf(re.match('1|2.0', glymur.version.openjpeg_version),
+@unittest.skipIf(re.match('0|1|2.0', glymur.version.openjpeg_version),
                  "Requires openjpeg 2.1.0 or higher")
 class TestPrintingOpenjp2(unittest.TestCase):
     """Tests for verifying how printing works on openjp2 library structures."""