[s1902] Some small changes

* Replace Expansion related magic numbers
* Remove an unneeded double line. Thanks to Ambal for pointing
* Add additional check for DK starting zones map file

Signed-off-by: Schmoozerd <schmoozerd@cmangos>

(based on commit [12364] - 90e787f)
Remove another redundant InBattleGround() check

(based on commit 0055d05)

Signed-off-by: Xfurry <xfurry@scriptdev2.com>
[s1903] fix Singleton compile error on clang

some members of Singleton were implicitly specialized in the static function
definitions, which conflicted with the initialization of said members (clang
saw it as a redefinition of the specialization)

Signed-off-by: DasBlub <DasBlub@gmail.com>

(based on commit [12365] - 772a5bb)

Signed-off-by: Xfurry <xfurry@scriptdev2.com>
[s1904] fix clang compile error from implicit type conversion

Signed-off-by: DasBlub <DasBlub@gmail.com>

(based on commit [12366] - ce05512)

Signed-off-by: Xfurry <xfurry@scriptdev2.com>
[s1905] fix clang compile error from call of templated member function

Signed-off-by: DasBlub <DasBlub@gmail.com>

(based on commit [12367] - 4a407cc)

Signed-off-by: Xfurry <xfurry@scriptdev2.com>
[s1906] Cleanup battleground code

Signed-off-by: Carl Hjerpe <lillecarl@gmail.com>

(based on commit 4814020)

Signed-off-by: Xfurry <xfurry@scriptdev2.com>
[s1907] Remove shapeshift forced object update hack

This and 8046e0e properly fixes powershifting

(based on commit 375b139)

Signed-off-by: Xfurry <xfurry@scriptdev2.com>
[s1908] Hack TBB code for support VS2012 (and new C++ standard in fact)

This hack will need until TBB will not support VS2012 by self.
With big chance with next TBB update in repo we can safely drop this
hack.

(based on commit [12368] - 7e9e22e)

Signed-off-by: Xfurry <xfurry@scriptdev2.com>
[s1909] Add continued integration support using Travis CI

Every push to a repository will start a new build on travis which will
make sure that CMaNGOS still builds. Currently, Travis only supports gcc
and clang on linux, Windows and OS X build test is not yet available.

Thanks to @travis-ci for their awesome software and their
sponsors for providing the infrastructure!
For the current build status of this repository, go to https://travis-ci.org/cmangos/mangos-wotlk/

(based on commit [12369] - 7349c20)