ChangeLog: Document changes since v0.3.0

Through 3b7c15d (Merge pull request opencontainers#334 from
mrunalp/remove_state_dir, 2016-03-08).

Signed-off-by: W. Trevor King <[email protected]>

Author: wking

ChangeLog

@@ -1,5 +1,30 @@
 OpenContainers Specifications
 
+Changes with v0.4.0:
+	Breaking changes:
+
+	* config: Move capabilities, selinuxProcessLabel, apparmorProfile,
+	  and noNewPrivileges from the linux setting to the process setting
+	  and make them optional, renaming selinuxProcessLabel to
+	  selinuxLabel, #329, #330
+	* runtime: Rename version to ociVerison in the state JSON, #225
+	* runtime: Remove the directory requirement for storing state, now
+	  that there is a 'state' operation, #225, #334
+
+	Additions:
+
+	* config-linux: Make seccomp optional, #333
+	* runtime: Added additional operations: state, stop, and exec.
+	  #225
+
+	Minor fixes and documentation:
+
+	* config-linux: Change mount type from *rune to *string and fix
+	  octal fileMode examples, #323
+	* runtime: RFC 2119 phrasing for the lifecycle, #225
+	* README: Replace BlueJeans with UberConference, #326
+	* style: Document Go-pointer exceptions, #317
+
 Changes with v0.3.0:
 	Breaking changes: