patch 0.7.0

Parse patches in the unified diff format
Documentation 
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=== added file 'added_file'
--- added_file	1970-01-01 00:00:00 +0000
+++ added_file	2013-10-13 23:44:04 +0000
@@ -0,0 +1,4 @@
+This was missing!
+holá mundo!
+
+Only for testing purposes.
\ No newline at end of file

=== modified file 'modified_file'
--- modified_file	2013-10-13 23:53:13 +0000
+++ modified_file	2013-10-13 23:53:26 +0000
@@ -1,5 +1,7 @@
 This is the original content.
 
-This should be updated.
+This is now updated.
+
+This is a new line.
 
-This will stay.
\ No newline at end of file
+This will stay.

=== removed file 'removed_file'
--- removed_file	2013-10-13 23:53:13 +0000
+++ removed_file	1970-01-01 00:00:00 +0000
@@ -1,3 +0,0 @@
-This content shouldn't be here.
-
-This file will be removed.
\ No newline at end of file