Add the write concern to the test output to clarify why it is slow wh…

…en fsyncing after every log message

Release 0.7.3

Converted tabs to spaces and indented some lines

Escape backslashes in message logged by MongoDbPatternLayout.java. Ot…

…herwise, the JSON parser fails to parse the string.

Replaced only line of Java 6 specific code with Java 5 compatible code

0.4.0 release

Fixed automatic versioning in buildr buildfile