Fix some issues with solar position

Bump version.

metobs/data/solar_position.py

@@ -71,8 +71,7 @@ __docformat__ = 'restructuredtext en'
 __version__ = '$Revision: 1.6 $'
 # $Source: /cvsroot/TOOLS/dev/metobs/python/data/metobs/data/solar_position.py,v $
 
-from metobs import mytime
-from metobs.data import NaN, approx_eq
+from metobs.data import NaN, util
 import math
 
 _days = ["Sunday","Monday","Tuesday","Wednesday","Thursday","Friday","Saturday"]
@@ -349,7 +348,7 @@ class SolarPosition(object):
         return self._eqTime
     @property
     def timenow(self):
-        return mytime.datetime_to_epoch(self._date) / 3600
+        return util.to_unix_timestamp(self._date) / 3600
     @property
     def date(self):
         return self._date
@@ -424,10 +423,10 @@ def solar_position(date, latitude, longitude):
     >>> assert approx_eq(s.elevation, 22.038213553352705, _ACCEPTABLE_DELTA)
     >>> assert approx_eq(s.cosZen, 0.3752248974802099, _ACCEPTABLE_DELTA)
     """
-    if not date.tzinfo:
-        date = mytime.set_tz(date, tz=mytime.LocalTimezone)
 
     year, month, day, hh, mm, ss = date.timetuple()[:6]
+    GMToffset = 0
+    if date.tzinfo:
         tzoffset = date.tzinfo.utcoffset(date)
         if tzoffset.days < 0:
             GMToffset = -(24 - tzoffset.seconds/3600)

setup.py

@@ -3,7 +3,7 @@ from setuptools import setup, find_packages
 
 setup(
     name='metobs.data',
-    version='0.5dev',
+    version='0.5',
     packages=find_packages(exclude=["*.tests", "*.tests.*", "tests.*", "tests"]),
     namespace_packages=['metobs'],
     include_package_data=True,