Update changelog

Added mimikatz update

Author: enigma0x3

changelog

@@ -1,3 +1,8 @@
+3/31/2016
+---------
+-Updated mimikatz dlls to version 2.1 alpha
+-Included modification to suppress cmd.exe when spawned via PTH.
+
 1/17/2016
 ---------
 - '--debug 2' now displays debug information to the console as well as the empire.debug file
@@ -243,4 +248,4 @@
 8/6/2015
 -----------
 -Initial release. All components released
--Commited path fix to correct bug in certain modules
+-Commited path fix to correct bug in certain modules