+ Update tika
+ Pull in Tika parsers
+ Remove chicken and egg scenario for FilestoreManager vs
RepositoryManager

This reverts commit 55c385e96e6594ec1ac3b5cd41ccd2df6048b696, reversing
changes made to 61bb29d492.

All tags that reference to particular object are stored in a list within a map.
There is a if statement that inits empty list when there are not references
to the current object yet, but the boolean expression checks for the wrong value.

JGit 4.0.0 fixes a memory leak but introduces a non-compatible change
for closing the RevWalk: before it was release() but now is close()

Change-Id: I21b0daf0550dcc2f12f1712e7b7cf519358a7a1d

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

Change-Id: Ie0b7d1e11d634577e943c8e4dbab080b0078f1b4

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.

Also correctly determine the line number of a fragment.

Unfortunately Lucene's MultiReader class does not expose a public method
for determining which index reader a document comes from.  There is a
private method which determines this information.

My new approach is to use reflection to call this private method and
determine the actual source index at runtime instead of storing the
repository name in the index. This gets me out of the "rename
repository" problem at the expense of a little runtime performance.