Monero: normalization fixes

[ph4r05]

PR that came from the discussion with @onvej-sl in #169

Requires rebasing on top of the master and merging #171 and #172 first.

[ph4r05]

Thanks for the merge guys!

If you could pls rebase this branch on the master - it would be great :)
PR needs merged changes to scalarmults.

Thanks!

[prusnak]

If I get ack from @onvej-sl I'll rebase merge/rebase this in monero branch.

[ph4r05]

OK so we need 2 confirmations from @onvej-sl

• rebase monero branch onto current master with merged PRs fixing scalarmults
• merging this PR 173 into monero branch

Please also consider either #174 or #175 (or both) because when given header files are included together there are macro clashes due to namespace pollution.

[onvej-sl]

ACK for rebase, please trigger a travis rebuild then.

[prusnak]

Merged #171, #172, #174, #175 into master, rebased monero branch on top of master.

@ph4r05 Please rebase this PR. Thank you!

[ph4r05]

Thanks! PR rebased, Travis tests finished.

[prusnak]

@onvej-sl are you OK with the change?

[onvej-sl]

ACK

[prusnak]

Thank you both!