Polish CHANGELOG for release of v0.2.0

Signed-off-by: Stefan Marr <git@stefan-marr.de>

CHANGELOG.md

@@ -2,30 +2,21 @@
 
 ## [Unreleased]
 
+## [0.2.0] - 2017-03-07 Extended Concurrency Support
+
+### Concurrency Support
+
  - Added basic support for shared-memory multithreading and fork/join
    programming ([PR #52](https://github.com/smarr/SOMns/pull/52))
    - object model uses now a global safepoint to synchronize layout changes
    - array strategies are not safe yet
 
- - Turn writes to method arguments into errors. Before it was leading to 
-   confusing setter sends and 'message not understood' errors.
-
  - Added Lee and Vacation benchmarks ([PR #78](https://github.com/smarr/SOMns/pull/78))
 
  - Configuration flag for actor tracing, -atcfg=<config>
    example: -atcfg=mt:mp:pc turns off message timestamps, message parameters and promises
 
  - Added Validation benchmarks and a new Harness.
-
- - Simplified AST inlining and use objects to represent variable info to improve
-   details displayed in debugger ([PR #80](https://github.com/smarr/SOMns/pull/80)).
-
- - Make instrumentation more robust by defining number of arguments of an
-   operation explicitly.
-
- - Add parse-time specialization of primitives. This enables very early 
-   knowledge about the program, which might be unreliable, but should be good
-   enough for tooling. (See [Issue #75](https://github.com/smarr/SOMns/issues/75) and [PR #88](https://github.com/smarr/SOMns/pull/88))
 
  - Added basic Communicating Sequential Processes support.
    See [PR #84](https://github.com/smarr/SOMns/pull/88).
@@ -42,14 +33,31 @@
  - Optimize processing of common single messages by avoiding allocation and
    use of object buffer ([issue #90](https://github.com/smarr/SOMns/pull/90))
 
+### Interpreter Improvements
+
+ - Turn writes to method arguments into errors. Before it was leading to 
+   confusing setter sends and 'message not understood' errors.
+
+ - Simplified AST inlining and use objects to represent variable info to improve
+   details displayed in debugger ([PR #80](https://github.com/smarr/SOMns/pull/80)).
+
+ - Make instrumentation more robust by defining number of arguments of an
+   operation explicitly.
+
+ - Add parse-time specialization of primitives. This enables very early 
+   knowledge about the program, which might be unreliable, but should be good
+   enough for tooling. (See [Issue #75](https://github.com/smarr/SOMns/issues/75) and [PR #88](https://github.com/smarr/SOMns/pull/88))
+
  - Added option to show methods after parsing in IGV with
    `-im`/`--igv-parsed-methods` ([issue #110](https://github.com/smarr/SOMns/pull/110))
 
-## 0.1.0 - 2016-12-15
+## [0.1.0] - 2016-12-15
 
 This is the first tagged version. For previous changes, please refer to the
 [pull requests][OldPRs] from around that time.
 
 
-[Unreleased]: https://github.com/smarr/SOMns-vscode/compare/v0.1.0...HEAD
+[Unreleased]: https://github.com/smarr/SOMns-vscode/compare/v0.2.0...HEAD
+[0.2.0]:      https://github.com/smarr/SOMns-vscode/compare/v0.1.0...v0.2.0
+[0.1.0]:      https://github.com/smarr/SOMns/releases/tag/v0.1.0
 [OldPRs]:    https://github.com/smarr/SOMns/pulls?utf8=%E2%9C%93&q=is%3Apr%20is%3Aclosed%20created%3A2010-01-01..2016-12-15%20