Update pragma solidity

[D-Nice]

• excludes known solc versions that break said contracts, until
  permanent fix in place.

[axic]

What contracts are broken which need this change?

[D-Nice]

@axic We're currently investigating to figure out the exact culprit, and then will let you know. For now we've taken the precaution of limiting to those versions of solidity, as they are the ones consistently working within all contexts Oraclize is used.

[D-Nice]

@axic to update you on this, only our browser-solidity fork with Oraclize module on JVM appears affected after internal testing. Any use of Oraclize with it appears to break starting with solidity 0.4.21-nightly.2018.3.6+commit.a9e02acc. Trying to deploy a contract leveraging Oraclize, causes an out of gas error.

Looking at the debugger, it fails when at a CALL opcode, on:
https://github.com/oraclize/ethereum-api/blob/master/oraclizeAPI_0.5.sol#L306
and more specifically:
OAR.getAddress()

with the stack being

0: 0x88ad6e
1: 0x51efaf4c8b3c9afbd5ab9f4bbc82784ab6ef8faa
2: 0x
3: 0xc0
4: 0x4
5: 0xc0
6: 0x20
7: 0xc4
8: 0x38cc4831
9: 0x51efaf4c8b3c9afbd5ab9f4bbc82784ab6ef8faa
10: 0x
11: 0x80
12: 0x3ed
13: 0x
14: 0x1a3
15: 0xa2e62045

at the time