message: Add BU ppa repo and install berkeley DB 4.8 dev pkg
diff: @@ -21,6 +21,7 @@ env:
  - SDK_URL=https://www.bitcoinunlimited.info/sdks
  - PYTHON_DEBUG=1
  - WINEDEBUG=fixme-all
  + - PPA=ppa:bitcoin-unlimited/bu-ppa
  matrix:
  # bitcoind
  - HOST=x86_64-unknown-linux-gnu PACKAGES="python3-zmq clang-format-3.8" DEP_OPTS="NO_QT=1 NO_UPNP=1 DEBUG=1" RUN_TESTS=true RUN_FORMATTING_CHECK=true GOAL="install" BITCOIN_CONFIG="--enable-zmq --enable-glibc-back-compat --enable-reduce-exports CPPFLAGS=-DDEBUG_LOCKORDER"
  @@ -44,7 +45,7 @@ install:
  - if [ -n "$PPA" ]; then travis_retry sudo add-apt-repository "$PPA" -y; fi
  - if [ -n "$DPKG_ADD_ARCH" ]; then sudo dpkg --add-architecture "$DPKG_ADD_ARCH" ; fi
  - if [ -n "$PACKAGES" ]; then travis_retry sudo apt-get update; fi
  - - if [ -n "$PACKAGES" ]; then travis_retry sudo apt-get install --no-install-recommends --no-upgrade -qq $PACKAGES; fi
  + - if [ -n "$PACKAGES" ]; then travis_retry sudo apt-get install --no-install-recommends --no-upgrade -qq libdb4.8-dev libdb4.8++-dev $PACKAGES; fi
  before_script:
  - unset CC; unset CXX
  - if [ "$CHECK_DOC" = 1 ]; then contrib/devtools/check-doc.py; fi
  