Merge branch 'macos-build-number-take-2' into 'master'

Make macOS .dmg use correct build number, take 2

See merge request b0/spectral!37

.travis.yml

@@ -1,5 +1,8 @@
 language: cpp
 
+git:
+  depth: false
+
 matrix:
   include:
   - os: osx
@@ -17,7 +20,7 @@ script:
 
 before_deploy:
 - mv ${DEPLOY_DIR}/bin/spectral.dmg ./
-- sed -i -e "s/TRAVIS_BUILD_NUMBER/${TRAVIS_BUILD_NUMBER}/g" .ci/bintray-release.json
+- sed -i -e "s/TRAVIS_BUILD_NUMBER/$(git rev-list --count HEAD)/g" .ci/bintray-release.json
 
 deploy:
   - provider: bintray

BUILD.md

@@ -3,6 +3,7 @@
 1. Update Qt to v5.10+
 
         brew install qt5
+        brew link qt5 --force
 
 2. Download Spectral source
 
@@ -16,8 +17,8 @@
 
 4. Build Spectral
 
-        /usr/local/Cellar/qt5/5.10.1/bin/qmake 
+        qmake ../spectral.pro
-        make
+        make -j4
 
 5. Open Spectral