Merge branch 'dev-3.0.0' into task_3.11

Author: satyamakgec

.travis.yml

@@ -12,9 +12,14 @@ jobs:
         - sudo apt-get update
         - sudo apt-get install -y dpkg
         - sudo apt-get install -y solc
+        - curl -L -o solc https://github.com/ethereum/solidity/releases/download/v0.5.8/solc-static-linux
+        - sudo mv solc /usr/bin/solc
+        - sudo chmod +x /usr/bin/solc
         - yarn install
-      before_script: truffle version
+      before_script:
+        - truffle version
+        - solc --version
       script: npm run test
 notifications:
   slack:
-    secure: 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
+    secure: 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