Updated environment.yml for newer flatland version

environment.yml

 name: flatland-rl
 channels:
-  - defaults
+  - anaconda
   - conda-forge
+  - defaults
 dependencies:
+  - tk=8.6.8
+  - cairo=1.16.0
+  - cairocffi=1.1.0
+  - cairosvg=2.4.2
+  - cffi=1.12.3
+  - cssselect2=0.2.1
+  - defusedxml=0.6.0
+  - fontconfig=2.13.1
+  - freetype=2.10.0
+  - gettext=0.19.8.1
+  - glib=2.58.3
+  - icu=64.2
+  - jpeg=9c
+  - libiconv=1.15
+  - libpng=1.6.37
+  - libtiff=4.0.10
+  - libuuid=2.32.1
+  - libxcb=1.13
+  - libxml2=2.9.9
+  - lz4-c=1.8.3
+  - olefile=0.46
+  - pcre=8.41
+  - pillow=5.3.0
+  - pixman=0.38.0
+  - pthread-stubs=0.4
+  - pycairo=1.18.1
+  - pycparser=2.19
+  - tinycss2=1.0.2
+  - webencodings=0.5.1
+  - xorg-kbproto=1.0.7
+  - xorg-libice=1.0.10
+  - xorg-libsm=1.2.3
+  - xorg-libx11=1.6.8
+  - xorg-libxau=1.0.9
+  - xorg-libxdmcp=1.1.3
+  - xorg-libxext=1.3.4
+  - xorg-libxrender=0.9.10
+  - xorg-renderproto=0.11.1
+  - xorg-xextproto=7.3.0
+  - xorg-xproto=7.0.31
+  - zstd=1.4.0
   - _libgcc_mutex=0.1
   - ca-certificates=2019.5.15
   - certifi=2019.6.16
@@ -17,24 +59,21 @@ dependencies:
   - readline=7.0
   - setuptools=41.0.1
   - sqlite=3.29.0
-  - tk=8.6.8
   - wheel=0.33.4
   - xz=5.2.4
   - zlib=1.2.11
   - pip:
     - atomicwrites==1.3.0
     - attrs==19.1.0
-    - cairocffi==1.0.2
-    - cairosvg==2.4.0
-    - cffi==1.12.3
     - chardet==3.0.4
     - click==7.0
+    - cloudpickle==1.2.2
     - crowdai-api==0.1.21
-    - cssselect2==0.2.1
     - cycler==0.10.0
-    - defusedxml==0.6.0
     - filelock==3.0.12
     - flatland-rl==2.1.1
+    - future==0.17.1
+    - gym==0.14.0
     - idna==2.8
     - importlib-metadata==0.19
     - importlib-resources==1.0.2
@@ -47,11 +86,10 @@ dependencies:
     - numpy==1.17.0
     - packaging==19.0
     - pandas==0.25.0
-    - pillow==6.1.0
     - pluggy==0.12.0
     - py==1.8.0
     - pyarrow==0.14.1
-    - pycparser==2.19
+    - pyglet==1.3.2
     - pyparsing==2.4.1.1
     - pytest==5.0.1
     - pytest-runner==5.1
@@ -61,18 +99,17 @@ dependencies:
     - recordtype==1.3
     - redis==3.3.2
     - requests==2.22.0
+    - scipy==1.3.1
     - six==1.12.0
     - svgutils==0.3.1
     - timeout-decorator==0.4.1
-    - tinycss2==1.0.2
     - toml==0.10.0
     - tox==3.13.2
     - urllib3==1.25.3
     - ushlex==0.99.1
     - virtualenv==16.7.2
     - wcwidth==0.1.7
-    - webencodings==0.5.1
     - xarray==0.12.3
     - zipp==0.5.2
-prefix: /home/mohanty/anaconda3/envs/flatland-rl
+prefix: /home/ubuntu/anaconda3/envs/flatland-rl