This reverts commit e1559e763a.

* Remove api/profiles WS
* Remove api/resources WS
* Remove api/tests WS
* Remove api/ce/activity?componentQuery parameter
* Remove api/ce/activity?p parameter
* Remove api/issues/assign?me parameter
* Remove api/issues/bulk_change?plan parameter
* Remove 'actionsPlans' and 'reporters' values from api/issues/search?facets
* Remove 'components', 'componentRoots' and 'componentRootUuids' from api/issues/search
* Remove api/rules/create?manual_key parameter
* Remove api/rules/update?debt_XXX parameters
* Remove api/users/search?f parameter

- rename "Authenticator" to "Authentication"

- add a bit of javadoc

- highlight the relations
  BasicAuthentication
    |- UserTokenAuthentication
    |- CredentialsAuthentication
       |- CredentialsExternalAuthentication
       |- CredentialsLocalAuthentication

* SONAR-10597 Update MANUAL_MEASURES#USER_LOGIN to USER_UUD in DB

* SONAR-10597 Update api/custom_measures/create to use user uuid

* SONAR-10597 Update api/custom_measures/update to use user uuid

* SONAR-10597 Remove CustomMeasureDao#selectOrFail

* SONAR-10597 Update api/custom_measures/search to use user uuid

* SONAR-10597 Clean up no more needed code

* SONAR-10597 Add ITs to check manual measure after login update

* SONAR-10598 Refactor UserIdentityAuthenticator#authenticate to use a ParameterObject
* SONAR-10598 Redirect user when login is updated and update personal org
* SONAR-10598 Improve update of personal organization key
* SONAR-10598 Improve IT stability related to generation of provider ID
* SONAR-10598 Add USERS#ORGANIZATION_UUID
* SONAR-10598 Replace usage of Organizaions#UserId by Users#OrganizationUuid

Extract hash mechanism into a single class LocalAuthentication
Implements SHA1 (deprecated) and bcrypt hash
Set bcrypt as default
Update the hash of a user during authentication if hash method was SHA1

Creation of an index is slow in Elasticsearch. It should not executed
before each test.

both when user is created with api/users/create or at first authentication
this feature is controlled by property sonar.organizations.createPersonalOrg

in order to wrap call to System.currentTimeMillis().
That is needed to bypass the condition
"if (requestedAt > lastUpdatedAt)" in tests.

* Settings class becomes abstract as multiple implementations
are used. Can't become an interface for binary
backward-compatibility of API

* tests should use MapSettings, an in-memory implementation
of Settings

* web server uses a thread-specific cache of settings when
processing HTTP requests

* web server does not have a cache of settings during startup,
except for the system settings loaded from sonar.properties

* Compute Engine uses a thread-specific cache of settings when
  processing a task. Cache is clear at end of task.

 * some useless methods of PersistentSettings are removed

 This JUnit ExternalResource has to be used
 as @Rule but not @ClassRule in order to
 prepare move to Elasticsearch 2.x.