switch the dependent packages from tb-nightly to tensorboard>=1.15 (#198)

* switch the dependent packages from tb-nightly to tensorboard>=1.15

requirements.txt

@@ -11,5 +11,5 @@ requests
 pandas
 flake8
 tb-paddle
-tb-nightly
+tensorboard >= 1.15
 cma == 2.7.0

requirements_py2.txt

@@ -10,5 +10,5 @@ requests
 pandas < 0.25.0
 flake8
 tb-paddle
-tb-nightly
+tensorboard >= 1.15
 cma == 2.7.0

setup.py

@@ -32,7 +32,7 @@ max_version, mid_version, min_version = python_version()
 
 REQUIRED_PACKAGES = [
     'six >= 1.10.0', 'protobuf >= 3.6.0', 'pyyaml', 'Pillow', 'requests',
-    'tb-paddle', 'tb-nightly', 'cma == 2.7.0'
+    'tb-paddle', 'tensorboard >= 1.15', 'cma == 2.7.0'
 ]
 
 if max_version < 3: