Merge for v0.22.0

Tm0.24

Signed-off-by: Sean Young <sean.young@monax.io>

This is not done correctly yet.

Signed-off-by: Sean Young <sean.young@monax.io>

Signed-off-by: Sean Young <sean.young@monax.io>

Signed-off-by: Sean Young <sean.young@monax.io>

Signed-off-by: Sean Young <sean.young@monax.io>

Refactor state into refs and tree.

nil pointer exception when name does not exist

Signed-off-by: Sean Young <sean.young@monax.io>

Minor typo fix in error message when account address is not found

Signed-off-by: phymbert <pierrick.hymbert@gmail.com>

Reduce the number of concurrent solc's we run

This is causing file systems errors on Mac.

Signed-off-by: Sean Young <sean.young@monax.io>

Signed-off-by: Silas Davis <silas@monax.io>

Signed-off-by: Silas Davis <silas@monax.io>

Also try to strengthen abstractions around prefixes and atomic commits.

Signed-off-by: Silas Davis <silas@monax.io>

Better support revert with no reason

Signed-off-by: Sean Young <sean.young@monax.io>

Bigint

Signed-off-by: Sean Young <sean.young@monax.io>

Signed-off-by: Sean Young <sean.young@monax.io>

Signed-off-by: Sean Young <sean.young@monax.io>

Fix abi decoding of bytes32

Note that any indexed string or array will be stored as a hash, so
we need to make that clear. The new Hashed field marks that.

We might want to store strings in bytes32 so that it does not get
hashed. If this is the case then use code similar to the test
TestEventEmitterBytes32isString.

Signed-off-by: Sean Young <sean.young@monax.io>

Update README.md

fix install burrow in readme

Signed-off-by: Casey Kuhlman <casey@monax.io>

Update command name | README.md

UPDATE: command name 'serve' to 'start'.
Severity: Low
Signed-off-by: Puneet Verma <puneet@saanvis.com>

burrow deploy should show revert message and fail job

Signed-off-by: Sean Young <sean.young@monax.io>

Fix solidity warnings, make tests use abi and add event/revert abi functionality

Signed-off-by: Sean Young <sean.young@monax.io>

Signed-off-by: Sean Young <sean.young@monax.io>

Signed-off-by: Sean Young <sean.young@monax.io>

Signed-off-by: Sean Young <sean.young@monax.io>

Minor cleanup of execution tests

Signed-off-by: Silas Davis <silas@monax.io>