Scheduled biweekly dependency update for week 33 (#67)

* Pin numpy to latest version 1.15.0

* Pin matplotlib to latest version 2.2.3

* Pin astropy to latest version 3.0.4

* Pin scipy to latest version 1.1.0

* Pin pyastronomy to latest version 0.13.0

* Pin hypothesis to latest version 3.69.1

* Pin pytest to latest version 3.7.2

* Pin pytest-cov to latest version 2.5.1

* Pin python-coveralls to latest version 2.9.1

* Pin codeclimate-test-reporter to latest version 0.2.3

* Pin codacy-coverage to latest version 1.3.11

requirements.txt

@@ -1,6 +1,6 @@
-numpy
-matplotlib
-astropy
-scipy
-pyastronomy
+numpy==1.15.0
+matplotlib==2.2.3
+astropy==3.0.4
+scipy==1.1.0
+pyastronomy==0.13.0
 

requirements_dev.txt

@@ -1,6 +1,6 @@
-hypothesis
-pytest
-pytest-cov
-python-coveralls
-codeclimate-test-reporter
-codacy-coverage
+hypothesis==3.69.1
+pytest==3.7.2
+pytest-cov==2.5.1
+python-coveralls==2.9.1
+codeclimate-test-reporter==0.2.3
+codacy-coverage==1.3.11