The merge type is a per repository setting. Add it to the edit page.

Add the option to merge a ticket branch to the integration branch
only when it can be fast-forwarded, or
always with a merge commit, or
by fast-foward if possible, otherwise with a merge commit.

Adds a new property ticket.mergeType with the valid values
FAST_FOWARD_ONLY, MERGE_ALWAYS and MERGE_IF_NECESSARY.

Merging and canMerge were refactored to make use of a new
IntegrationStrategy class for each type of strategy.

If the source repository access restriction exceeds the fork default (push)
then the fork shall inherit the source repository access restriction.

The script will create a environment file keeping all the major settings and
installs a systemd unit file.
The script (mainly the unit file part) should also work for other systemd
based distributions like ArchLinux. But /etc/sysconfig may not exist there.

Signed-off-by: Soeren Grunewald <soeren.grunewald@desy.de>

We already highlight C/C++ source files with the default configuration,
so we should do this also for header files.

Signed-off-by: Soeren Grunewald <soeren.grunewald@desy.de>

Since perl scripts (.pl) was already supported, add .pm for perl modules

In AuthenticationManager:385, only `provider instanceof UsernamePasswordAuthenticationProvider` will be called

This is a fairly functional variation of Gitblit with one notable
exception:

    The security filters are not working properly.

This is a design flaw in Guice that I have reported upstream [1].  The
general idea is that Guice-Servlet filters are not properly wrapping the
ServletRequest. This has historically been a problem for Guice-Servlet
servlets but Google has fixed most of those issues.  Unfortunately, all
the same flaws reported against the servlet delegation also exist in
Guice-Servlet filter delegation. :(

[1]: https://code.google.com/p/google-guice/issues/detail?id=807

This is a quick return of the servlet3-style code which was reverted mid-December 2013. It is not completely tested, but a casual review was done and it's looks good. The next steps should be to restore `@Inject` annotations, simplify *DaggerModule* boilerplate, and run this on a JEE container with CDI - like JBoss AS 7.