Update changelog and bump version to 0.7.4

Author: dan-blanchard

README.rst

@@ -39,6 +39,12 @@ License
 Changelog
 ~~~~~~~~~
 
+-  v0.7.4
+   
+   -  Switch to using preferred encoding from ``locale`` module for converting 
+      strings to binary. This should prevent some lingering ``UnicodeEncodeError`` 
+      crashes on Python 2.7.
+
 -  v0.7.3
 
    -  Fix a couple crashes when certain functions that expect ``str`` were passed 

drmaa/version.py

@@ -22,5 +22,5 @@
 :author: Dan Blanchard ([email protected])
 '''
 
-__version__ = '0.7.3'
+__version__ = '0.7.4'
 VERSION = tuple(int(x) for x in __version__.split('.'))