when the message of the violation is changing

Variable ANT_HOME should be exported in order to be available for child
processes.

* Removed useless version column from Quality Profiles page.

* To improve readability - version of profile displayed in a dedicated
  column on Changelog page, otherwise it can be difficult to determine
  version associated to a row.

* Allowed to select both versions to compare.

* CSS attribute "word-wrap" was set to "break-word" to decrease width of
  table, when parameter value too huge. Tested in Chromimum 12.0.742.68
  and in Firefox 3.6.17.

* Version of profile was added to widget.

* Save and show username instead of login.

Change the way to display false positives on the result page.

And also updated the documentation.

Add the violation id on a review JSON/XML format so that we don't
have to add it later when we implement manual reviews.

- Java client WS: create, update and delete queries
- Added the ID of each comment on a review (JSON and XML) to be able
  to cleanly delete the last comment of a review

- Server side: delete last comment of a review

- Server side: create and modify review

* Create event only when actual change of version or profile was done.

* Use only one form for event description: "ProfileA version X is used
  instead of ProfileB version Y".

* Show message instead of empty table, when no changes were done.

* Add a select box to only show changelog between the last version and
  another selected version (penultimate by default).

* Reorder columns

* Use bold instead of italic to express parameter changes

* Show severity icons

* Lowercase action text and simplify code

Clear the "Assigned to" field when the options "With false-positives"
and "Only false-positives" are selected otherwise no result is 
returned as false-positive review are automatically unassigned.

Apply patch, which was contributed by Julien Henry:

* Following algorithm was implemented: Every profile starts with
  version=1 and used=false. As soon as there is an analysis of a
  project, the involved profile is set to used=true. Every modification
  to a quality profile (activation, deactivation or modification of
  rule) is logged in DB in dedicated tables. When a modification is done
  on a profile that is used=true, then version number is increased and
  profile is set to used=false.

* Introduced new metric to store profile version, which was used during
  analysis.

* If profile for project is different than the one used during previous
  analysis, then event would be created.

* Introduced new tab 'changelog' for profiles.

Following fixes were applied on original patch:

* Index name limited to 30 characters in Oracle DB, so names were
  reduced.

* Field ActiveRuleChange.profileVersion never read locally, because
  ruby read it directly from DB, so getter added.

* Direction doesn't make sense for 'profile_version' metric, so was
  removed.

* Fixed ProfileEventsSensor: it seems that TimeMachine not guarantee
  that the order of measures would be the same as in query, so we should
  perform two sequential queries.

* Fixed handling of null values during migration.

Had to comment 1 line in scriptaculous.js file.

- Adds select box on the search page
- Change comment icon color if false-positive
- Add "False positive" label on the permalink page
- Adjust link that opens the resource to directly open the resource
  viewer on the false-positives

FI: the display of the indicator is handle by the scriptaculous 
component, which uses the "display" property instead of the 
"visibility" one to hide/show the indicator. This is what causes 
the "shaking" of elements placed on the right side of the component
while waiting for the answer from the server.

The reason is that the DB request fails on Derby because of the joint
needed to get the assignee name or the project name.
FI: it worked on Postgres (and probably all other "real" DBs).

1- Update the DB, migration scripts & co.
2- Update the model, controller & co.
3- Update the WS Client

SONAR-2469 instanciation strategy of batch extensions

SONAR-2469 fix initialization of project

- Fix alignment of comment with title
- Replaces '\n' by a space