Split bitcoin-tx into its own package

Reverts the change putting it in the bitcoind deb.

contrib/debian/bitcoin-tx.install

@@ -0,0 +1 @@
+usr/local/bin/bitcoin-tx usr/bin

contrib/debian/bitcoind.install

@@ -1,3 +1,2 @@
 usr/local/bin/bitcoind usr/bin
 usr/local/bin/bitcoin-cli usr/bin
-usr/local/bin/bitcoin-tx usr/bin

contrib/debian/control

@@ -56,3 +56,18 @@ Description: peer-to-peer network based digital currency - Qt GUI
  requires 20+ GB of space, slowly growing.
  .
  This package provides Bitcoin-Qt, a GUI for Bitcoin based on Qt.
+
+Package: bitcoin-tx
+Architecture: any
+Depends: ${shlibs:Depends}, ${misc:Depends}
+Description: peer-to-peer digital currency - standalone transaction tool
+ Bitcoin is a free open source peer-to-peer electronic cash system that
+ is completely decentralized, without the need for a central server or
+ trusted parties.  Users hold the crypto keys to their own money and
+ transact directly with each other, with the help of a P2P network to
+ check for double-spending.
+ .
+ This package provides bitcoin-tx, a command-line transaction creation
+ tool with minimal dependencies which can be used without a bitcoin
+ daemon.  Some means of exchanging minimal transaction data with peers
+ is still required.