Fix pip installation

soil/VERSION

@@ -0,0 +1 @@
+0.10.2

soil/__init__.py

@@ -4,7 +4,7 @@ import os
 import pdb
 import logging
 
-__version__ = "0.10.1"
+from .version import __version__
 
 try:
     basestring

soil/version.py

@@ -0,0 +1,20 @@
+import os
+import logging
+
+logger = logging.getLogger(__name__)
+
+ROOT = os.path.dirname(__file__)
+DEFAULT_FILE = os.path.join(ROOT, 'VERSION')
+
+
+def read_version(versionfile=DEFAULT_FILE):
+    try:
+        with open(versionfile) as f:
+            return f.read().strip()
+    except IOError:  # pragma: no cover
+        logger.error(('Running an unknown version of {}.'
+                      'Be careful!.').format(__name__))
+        return '0.0'
+
+
+__version__ = read_version()