web3.eth.Contract.getPastEvents doesn't support "allEvents" anymore

[mistersandman]

Expected behavior

Using "allEvents" as event name in web3.eth.Contract.getPastEvents should be accepted and return all events matching the specified options according to the docs.

Actual behavior

An exception "Error: Event with name "allEvents" does not exists." is thrown.

Steps to reproduce the behavior

Call getPastEvents on a contract with the first argument (event name) set to "allEvents".

Error Logs

Error: Event with name "allEvents" does not exists.
    at _callee$ (h:\****\node_modules\web3-eth-contract\dist\web3-eth-contract.cjs.js:959:28)
    at tryCatch (h:\****\node_modules\regenerator-runtime\runtime.js:62:40)
    at Generator.invoke [as _invoke] (h:\****\node_modules\regenerator-runtime\runtime.js:288:22)
    at Generator.prototype.(anonymous function) [as next] (h:\****\node_modules\regenerator-runtime\runtime.js:114:21)
    at asyncGeneratorStep (h:\****\node_modules\@babel\runtime\helpers\asyncToGenerator.js:3:24)
    at _next (h:\****\node_modules\@babel\runtime\helpers\asyncToGenerator.js:25:9)
    at h:\****\node_modules\@babel\runtime\helpers\asyncToGenerator.js:32:7
    at Promise (<anonymous>)
    at h:\****\node_modules\@babel\runtime\helpers\asyncToGenerator.js:21:12
    at h:\****\node_modules\web3-eth-contract\dist\web3-eth-contract.cjs.js:978:23
    at Promise (<anonymous>)
    at AbstractContract.getPastEvents (h:\****\node_modules\web3-eth-contract\dist\web3-eth-contract.cjs.js:949:14)

Versions

Observed on Windows 10 with NodeJS v8.1.2 using web3@1.0.0-beta.41.
This used to work on the same setup with web3@1.0.0-beta.37.