Bug 2209 - installer gridengine qmaster sur physix-master

fixed bug that causes SgeConfigurator to fail with sge 8.1.9 because a new parameter qsort_args has been added to parallel environment:

command failed : qconf -Ap '/tmp/make'
root@physix-master:/home/graffy# qconf -Ap '/tmp/make'
error: required attribute "qsort_args" is missing
error reading in file

version.py

@@ -0,0 +1,37 @@
+class Version(object):
+    """
+    simple version number made of a series of positive integers separated by dots
+    
+    distutils.version.StrictVersion : not good because versions such as 3.2.0.4 are not allowed (StrictVersion allows no more than 3 numbers)
+    distutils.version.LooseVersion : not good because the version string could be anything (https://stackoverflow.com/questions/11887762/how-do-i-compare-version-numbers-in-python)
+    
+    """
+    def __init__(self, version_as_string):
+        """
+        :param str version_as_string: eg '6.2u5' or '8.1.9'
+        """
+        self.numbers = [int(s) for s in version_as_string.replace('u', '.').split('.')]
+        
+    def get_number(self, index):
+        if index >= len(self.numbers):
+            return 0
+        else:
+            return self.numbers[index]
+
+    def __eq__(self, other):
+        for i in range(max(len(self.numbers), len(other.numbers))):
+            if self.get_number(i) != other.get_number(i):
+                return False
+        return True
+
+    def __gt__(self, other):
+        for i in range(max(len(self.numbers), len(other.numbers))):
+            if self.get_number(i) < other.get_number(i):
+                return False
+            if self.get_number(i) > other.get_number(i):
+                return True
+            # if numbers ar equal continue to next version number
+        return False  # numbers are equal
+    
+    def __str__(self):
+        return '.'.join([str(n) for n in self.numbers])