+ Added ruby releases to History.txt to make it easier to see what yo…

…u're missing

[git-p4: depot-paths = "//src/minitest/dev/": change = 7282]

History.txt

@@ -153,7 +153,7 @@
 
   * Fixed Mock.respond_to?(var) to work with strings. (holli)
 
-=== 2.5.1 / 2011-08-27
+=== 2.5.1 / 2011-08-27 // ruby 1.9.3: p0, p125, p34579
 
 * 2 minor enhancements:
 
@@ -324,7 +324,7 @@
   * Added options output at the top of the run, for fatal run debugging (tenderlove)
   * Spec's describe method returns created class
 
-=== 1.6.0 / 2010-03-27
+=== 1.6.0 / 2010-03-27 // ruby 1.9.2-p290
 
 * 10 minor enhancements:
 
@@ -395,7 +395,7 @@
   * Switched to __name__ to avoid common ivar name.
   * Fixed indentation in test file (1.9).
 
-=== 1.3.1 / 2009-01-20
+=== 1.3.1 / 2009-01-20 // ruby 1.9.1-p431
 
 * 1 minor enhancement: