Add package shotgun to the index

packages.v1.tsv

@@ -26,4 +26,5 @@ pusherman	https://github.com/inaka/pusherman.git	https://github.com/inaka/pusher
 ranch	https://github.com/ninenines/ranch	http://ninenines.eu	Socket acceptor pool for TCP protocols.
 resource_discovery	https://github.com/erlware/resource_discovery	http://erlware.org/	An application used to dynamically discover resources present in an Erlang node cluster.
 sheriff	https://github.com/extend/sheriff	http://ninenines.eu	Parse transform for type based validation.
+shotgun	https://github.com/inaka/shotgun.git	https://github.com/inaka/shotgun.git	better than just a gun
 tinymt-erlang	https://github.com/jj1bdx/tinymt-erlang	https://github.com/jj1bdx/tinymt-erlang	TinyMT pseudo random number generator for Erlang.

packages.v1.txt

@@ -26,4 +26,5 @@ pusherman	https://github.com/inaka/pusherman.git	https://github.com/inaka/pusher
 ranch	https://github.com/ninenines/ranch	http://ninenines.eu	Socket acceptor pool for TCP protocols.
 resource_discovery	https://github.com/erlware/resource_discovery	http://erlware.org/	An application used to dynamically discover resources present in an Erlang node cluster.
 sheriff	https://github.com/extend/sheriff	http://ninenines.eu	Parse transform for type based validation.
+shotgun	https://github.com/inaka/shotgun.git	https://github.com/inaka/shotgun.git	better than just a gun
 tinymt-erlang	https://github.com/jj1bdx/tinymt-erlang	https://github.com/jj1bdx/tinymt-erlang	TinyMT pseudo random number generator for Erlang.

packages.v2.tsv

@@ -26,4 +26,5 @@ pusherman	git	https://github.com/inaka/pusherman.git	1	https://github.com/inaka/
 ranch	git	https://github.com/ninenines/ranch	1.0.0	http://ninenines.eu	Socket acceptor pool for TCP protocols.
 resource_discovery	git	https://github.com/erlware/resource_discovery	master	http://erlware.org/	An application used to dynamically discover resources present in an Erlang node cluster.
 sheriff	git	https://github.com/extend/sheriff	master	http://ninenines.eu	Parse transform for type based validation.
+shotgun	git	https://github.com/inaka/shotgun.git	0.1	https://github.com/inaka/shotgun.git	better than just a gun
 tinymt-erlang	git	https://github.com/jj1bdx/tinymt-erlang	master	https://github.com/jj1bdx/tinymt-erlang	TinyMT pseudo random number generator for Erlang.