Removed .travis.yml, use "travis" branch.

.travis.yml

@@ -1,37 +0,0 @@
-sudo: required
-dist: trusty
-
-language: cpp
-
-compiler:
-  - gcc
-
-os:
-  - linux
-
-branches:
-  only:
-  - master
-
-notifications:
-  email: false
-  irc:
-    channels:
-    - "chat.freenode.net#rawtherapee"
-    template:
-    - "%{repository}/%{branch} (%{commit} - %{author}): %{build_url}: %{message}"
-
-env:
-  global:
-  - OMP_NUM_THREADS=4
-
-before_install:
-  - sudo apt-get -qq update
-  - sudo apt-get install build-essential cmake curl git libbz2-dev libcanberra-gtk-dev libexiv2-dev libexpat-dev libfftw3-dev libglibmm-2.4-dev libgtk2.0-dev libgtkmm-2.4-dev libiptcdata0-dev libjpeg8-dev liblcms2-dev libpng12-dev libsigc++-2.0-dev libtiff5-dev zlib1g-dev
-
-before_script:
-  - mkdir build
-  - cd build
-  - cmake -DCMAKE_CXX_FLAGS="-std=c++11" -DWITH_LTO="OFF" -DPROC_TARGET_NUMBER="2" ..
-
-script: make