Update CI scripts and fix linting errors (#55)

Pylint 2.4.2 generates some new error reports, mostly due to imports not
being at the top.
Update CI scripts to 1.2.0 to fix failing TravisCI builds.
Take control of the conda path on Mac Azure builds to avoid conda
errors.

.azure-pipelines.yml

@@ -34,7 +34,7 @@ jobs:
     displayName: Add conda to PATH
 
   # Get the Fatiando CI scripts
-  - bash: git clone --branch=1.1.1 --depth=1 https://github.com/fatiando/continuous-integration.git
+  - bash: git clone --branch=1.2.0 --depth=1 https://github.com/fatiando/continuous-integration.git
     displayName: Fetch the Fatiando CI scripts
 
   # Setup dependencies and build a conda environment
@@ -92,8 +92,14 @@ jobs:
   - bash: echo "##vso[task.prependpath]$CONDA/bin"
     displayName: Add conda to PATH
 
+  # On Hosted macOS, the agent user doesn't have ownership of Miniconda's installation
+  # directory We need to take ownership if we want to update conda or install packages
+  # globally
+  - bash: sudo chown -R $USER $CONDA
+    displayName: Take ownership of conda installation
+
   # Get the Fatiando CI scripts
-  - bash: git clone --branch=1.1.1 --depth=1 https://github.com/fatiando/continuous-integration.git
+  - bash: git clone --branch=1.2.0 --depth=1 https://github.com/fatiando/continuous-integration.git
     displayName: Fetch the Fatiando CI scripts
 
   # Setup dependencies and build a conda environment
@@ -177,7 +183,7 @@ jobs:
     displayName: Add conda to PATH
 
   # Get the Fatiando CI scripts
-  - script: git clone --branch=1.1.1 --depth=1 https://github.com/fatiando/continuous-integration.git
+  - script: git clone --branch=1.2.0 --depth=1 https://github.com/fatiando/continuous-integration.git
     displayName: Fetch the Fatiando CI scripts
 
   # Setup dependencies and build a conda environment

.travis.yml

@@ -54,7 +54,7 @@ matrix:
 before_install:
     # Copy sample data to the verde data dir to avoid downloading all the time
     # Get the Fatiando CI scripts
-    - git clone --branch=1.1.1 --depth=1 https://github.com/fatiando/continuous-integration.git
+    - git clone --branch=1.2.0 --depth=1 https://github.com/fatiando/continuous-integration.git
     # Download and install miniconda and setup dependencies
     # Need to source the script to set the PATH variable globaly
     - source continuous-integration/travis/setup-miniconda.sh