Fixed decoding bytes parameters for logs emitted with solc 0.4.x

[maqdev]

Description

This fixes event log decoding that contains bytes or string parameters by contracts compiled with solc 0.4.x

Fixes #3724, #3738

Type of change

• Bug fix (non-breaking change which fixes an issue)

Checklist:

• I have selected the correct base branch.
• I have performed a self-review of my own code.
• I have commented my code, particularly in hard-to-understand areas.
• I have made corresponding changes to the documentation.
• My changes generate no new warnings.
• Any dependent changes have been merged and published in downstream modules.
• I ran npm run dtslint with success and extended the tests and types if necessary.
• I ran npm run test:unit with success.
• I ran npm run test:cov and my test cases cover all the lines and branches of the added code.
• I ran npm run build and tested dist/web3.min.js in a browser.
• I have tested my code on the live network.
• I have checked the Deploy Preview and it looks correct.
• I have updated the CHANGELOG.md file in the root folder.

[coveralls]

Coverage decreased (-2.3%) to 78.042% when pulling 7d91f3f on maqdev:1.x into b0f385c on ethereum:1.x.

[spacesailor24]

I have tested the changes and they do seem to fix the errors 🎉

However, this PR commits the built web3js.min.js and web3js.min.js.map files which only happens when a new release is made. So @maqdev, if you could kindly remove those commits from this PR, this should be ready to merge!

[maqdev]

@spacesailor24 web3js.min.js and web3js.min.js.map are removed from the PR