Change-Id: I86a1eb61c2351d1cf3f6b3becf00f2a36d5c8ed6

Combining Dagger and Servlet 3 works really well on stock Tomcat and
Jetty but it is a troublesome combination on JEE containers with their
own ideas on how to instantiate classes.  JBoss AS 7 has been
particularly nasty and it is just simpler to scaleback and stay with
Servlet 2.5 than it is to fight all permuations of containers.

Instead of using constructor DI, the servlets and filters each have an
inject(ObjectGaph) method which is automatically called during
initialization.  Each servlet or filter is responsible for retrieving
the required dependency from the graph.  The Dagger object graph is
created in the context listener and stuffed into the context as an
attribute.

Change-Id: Ib5714584fe73e2a6b9c6fda12af080a43356cbda

Change-Id: I2e4a8e7424e7c62d1e89ca62a91423fdf3e36ac8

Change-Id: I8fb38fb6a3dae74ad7a12b045b054373b9b02518

Change-Id: Id6deb27306e0034898673bf5d5d76a4ed012ced6

Change-Id: I3cd332a6509e434d901e1b262600f4c8ce57752b

Change-Id: I5f0f50f4ae7d332e9f724a2e6f074fa71f646035

Change-Id: I9bb2cc0cbfac9841b13bed15a474fefb24355cd4

These manager interfaces define how the GitBlit singleton will
eventually be split into smaller component managers.  The Wicket app and
all servlets have been updated to request the needed managers.  There
are _very_ few method signature changes - although there are a handful.

This is a surgical sharding of responsibility based on a proof of
concept refactor.  Instead of random references to  GittBlit.self()
there are now precise references to the manager interface required to
accomplish some task.  Some tasks may require references to multiple
managers.

The code is now littered with calls to GitBlit.getManager(class) and
those familiar with the code-base will no doubt notice the duplication
of methods from IUserService in IUserManager and the addition of
implementation methods in the GitBlit context class.  When the
GitBlit class is broken apart and the existing external authentication
user service classes are refactored to AuthenticationService classes,
this will again simplify and flatten.  But in order to safely and
cleanly modularize the stable code-base we will have to live with a
little duplication for a short while.

Change-Id: I7314ec8acaab2dcc6092785ed4434cc09fdbbe16

Change-Id: I9f91138b20219be6e3c4b28251487df262bff6cc

This is a massive commit which reorganizes the entire project structure
(although it is still monolithic), removes the Build classes, and
switches to Moxie, a smarter Ant build tookit based on the original
Gitblit Build classes.

The Ant build script will likely require additional fine-tuning, but
this is big step forward.

Require web.enableRpcAdministration=true to process federation RPCs.

Added skeleton mechanism to update server settings via rpc.

Added setting metadata. Added server status rpc. Improved setting tab in
Manager.

Added new request type to retrieve Gitblit settings to implement the
password preferences (minLength, storage type) and federation sets.