Always default to 0.8

change copyright date and add medium URL on index: useful links

compile-tab: add evmVersion

Specifying a specific EVM version for `solc` to target
is useful when targetting older private chains deployments
with the latest compiler.

This work in progress patch adds an "EVM Version" drop down menu
in the compiler tab.

This patch depends on https://github.com/ethereum/remix/pull/1193
in `remix-solidity` to pass down the `evmVersion` option.

MythX plugin

copying docs from remix/docs to remix-ide/docs

Add Provable plugin to app manager

Link2docs

Adding the remixd command to the remixd modal

Add warning for plugin version

deploy from circle ci