Bump minimum boost version in contrib/debian

contrib/debian/changelog

@@ -1,3 +1,9 @@
+bitcoin (0.14.1-trusty2) trusty; urgency=medium
+
+  * Bump minimum boost version in deps.
+
+ -- Matt Corallo (BlueMatt) <matt@mattcorallo.com>  Thu, 04 May 2017 17:12:00 -0400
+
 bitcoin (0.14.1-trusty1) trusty; urgency=medium
 
   * New upstream release.

contrib/debian/control

@@ -12,12 +12,12 @@ Build-Depends: debhelper,
  libssl-dev,
  pkg-config,
  libevent-dev,
- libboost-system1.48-dev | libboost-system-dev (>> 1.35),
- libboost-filesystem1.48-dev | libboost-filesystem-dev (>> 1.35),
- libboost-program-options1.48-dev | libboost-program-options-dev (>> 1.35),
- libboost-thread1.48-dev | libboost-thread-dev (>> 1.35),
- libboost-test1.48-dev | libboost-test-dev (>> 1.35),
- libboost-chrono1.48-dev | libboost-chrono-dev (>> 1.35),
+ libboost-system1.48-dev | libboost-system-dev (>> 1.47),
+ libboost-filesystem1.48-dev | libboost-filesystem-dev (>> 1.47),
+ libboost-program-options1.48-dev | libboost-program-options-dev (>> 1.47),
+ libboost-thread1.48-dev | libboost-thread-dev (>> 1.47),
+ libboost-test1.48-dev | libboost-test-dev (>> 1.47),
+ libboost-chrono1.48-dev | libboost-chrono-dev (>> 1.47),
  qt4-qmake,
  libqt4-dev,
  libqrencode-dev,