Gets all users. @since 3.3 Gets a user. @param userID the ID of the user to get. Gets a project. @param projectID the ID of the project to get. Create a user. @param loginName the login of the user for creation. @since 3.2.3 Gets a user Avatar URL. It can be absolute, or relative to portal base URL. @param userURI the ID of the user (name of the argument is wrong) @since 3.6.0 Gets users of a project. @param projectID the ID of the projects to get the users for. Gets the root project group. Gets a project at given location. @param location repository location @since 3.3 Gets a project group at given location. @param location repository location @since 3.3 Gets a project group. @param projectGroupURI the URI of the project group to get. Gets all projects located directly below a project group. @param projectGroupURI the URI of the project to get all projects for. @since 3.3 Gets all projects located below a project group. @param projectGroupURI the URI of the project to get all projects for. Gets all project groups located directly below a project group. @param projectGroupURI the URI of the project to get all project groups for. @since 3.3 Update a user. @param user the user for update. @since 3.2.3 Gets a project. @param projectURI the URI of the project to get. @since 3.3 Gets an user. @param userURI user's URI. @since 3.3 This service provides functionallity to get information related to projects.