Up-to-date CHANGES file

I added the release notes for MinCED version 0.2.0.

CHANGES

@@ -1,22 +1,26 @@
 Revision history for MinCED
+
+0.2.0	13-Jul-2015
+        New masking feature to skip over low complexity regions, such as
+        runs of Ns, to increase speed with heavily scaffolded sequences
+
 0.1.6	18-Jul-2014
-		Fix off-by-one error in the gff output.
-		
-0.1.5   03-Apl-2014
-		Changed the behaviour of the '-spacers' option. Without any
-		output file given the behaviour is the same as before, creating
-		a file with the input name's prefix and adding '_spacers.fa' to
-		the end. Now when an output file is given the '_spacers.fa' will
-		be appended to that name, not the input file's name
-		
+        Fix off-by-one error in the gff output.
+
+0.1.5   03-Apr-2014
+        Changed the behaviour of the '-spacers' option. Without any
+        output file given the behaviour is the same as before, creating
+        a file with the input name's prefix and adding '_spacers.fa' to
+        the end. Now when an output file is given the '_spacers.fa' will
+        be appended to that name, not the input file's name
+
 0.1.3   19-Nov-2013
         Fixed bug in gff output where the gff header was being printed 
         multiple times
 
 0.1.2   18-Nov_2013
         Minor bug fixes to gff output format
 
-
 0.1.1   19-Jul-2013
         Added in new output formats:
             * summary gff format