Finer-grained repository access permissions (issue 36)

Implemented discrete repository access permissions to replace the
really primitive course-grained permissions used to this point.  This
implementation allows for finer-grained access control, but still
falls short of integrated, branch-based permissions sought by some.

Access permissions follow the conventions established by Gitosis and
Gitolite so they should feel immediately comfortable to experienced
users.  This permissions infrastructure is complete and works exactly as
expected.  Unfortunately, there is no ui in this commit to change
permissions, that will be forthcoming.  In the meantime, Gitblit
hot-reloads users.conf so the permissions can be manipulated at runtime
with a text editor.

The following per-repository permissions are now supported:
- V (view in web ui, RSS feeds, download zip)
- R (clone)
- RW (clone and push)
- RWC (clone and push with ref creation)
- RWD (clone and push with ref creation, deletion)
- RW+ (clone and push with ref creation, deletion, rewind)

And a users.conf entry looks something like this:

	[user "hannibal"]
		password = bossman
		repository = RWD:topsecret.git

1 files changed, 21 insertions, 1 deletions

diff --git a/src/com/gitblit/IUserService.java b/src/com/gitblit/IUserService.java
index 8822d024..059d648a 100644
--- a/src/com/gitblit/IUserService.java
+++ b/src/com/gitblit/IUserService.java
@@ -127,6 +127,15 @@ public interface IUserService {
 	boolean updateUserModel(UserModel model);

 

 	/**

+	 * Updates/writes all specified user objects.

+	 * 

+	 * @param models a list of user models

+	 * @return true if update is successful

+	 * @since 1.2.0

+	 */

+	boolean updateUserModels(List<UserModel> models);

+	

+	/**

 	 * Adds/updates a user object keyed by username. This method allows for

 	 * renaming a user.

 	 * 

@@ -205,7 +214,8 @@ public interface IUserService {
 	 * @param teamnames

 	 * @return true if successful

 	 * @since 0.8.0

-	 */	

+	 */

+	@Deprecated

 	boolean setTeamnamesForRepositoryRole(String role, List<String> teamnames);

 	

 	/**

@@ -227,6 +237,15 @@ public interface IUserService {
 	boolean updateTeamModel(TeamModel model);

 

 	/**

+	 * Updates/writes all specified team objects.

+	 * 

+	 * @param models a list of team models

+	 * @return true if update is successful

+	 * @since 1.2.0

+	 */	

+	boolean updateTeamModels(List<TeamModel> models);

+	

+	/**

 	 * Updates/writes and replaces a complete team object keyed by teamname.

 	 * This method allows for renaming a team.

 	 * 

@@ -277,6 +296,7 @@ public interface IUserService {
 	 * @param usernames

 	 * @return true if successful

 	 */

+	@Deprecated

 	boolean setUsernamesForRepositoryRole(String role, List<String> usernames);

 

 	/**