small changes to rpc command help message strings
build: Make sure historical release notes end up in distributions

Adds the historical release notes to release tarballs and windows
installers.
Limit the number of orphan blocks

In case the total number of orphan blocks in memory exceeds a limit
(currently set to 750), a random orphan block (which is not
depended on by another orphan block) is dropped. This means it will
need to be downloaded again, but it won't consume memory until then.
[Qt] Fix nTransactionFee in qt-settings
Merge pull request #3613 from cozz/cozz1

[Qt] Fix nTransactionFee in qt-settings
Typo fix: `anonimized => anonymized` + `infromation => information`
Merge pull request #3627 from calvintam/fix_typos

Typo fix: `anonimized => anonymized` + `infromation => information`
-Wl,-z,relro and -z,now were wiping out environmental LDFLAGS passed in by the user.
I moved them to HARDENING_* where they belong.
Merge pull request #3634

505867a -Wl,-z,relro and -z,now were wiping out environmental LDFLAGS passed in by the user. I moved them to HARDENING_* where they belong. (Midnight Magic)
gitian: Make linux build of OpenSSL deterministic

OpenSSL was embedding a timestamp causing its build to be
non-deterministic.
Change deps-linux to be deterministic by using FAKETIME
as needed and disabling it when it gets in the way.
gitian: Make linux boost dependency completely deterministic

It appears that the output was different every time.

This doesn't affect the final bitcoind/bitcoin-qt, but is confusing
nevertheless.

Fix it by using FAKETIME and zipping files in deterministic order.
Update the address for downloading libpng

The FTP server what we get libpng from only keeps the latest version in its main folder. Older versions are in the "history" folder. Apparently version 1.6.9 has been released, so 1.6.8 has moved to the history folder.
Merge pull request #3635

12edce5 Update the address for downloading libpng (Micha)
Merge pull request #3608

de21e8f build: Make sure historical release notes end up in distributions (Wladimir J. van der Laan)
[Qt] remove broken OptionsModel::Upgrade()
remove setting methods in wallet/walletdb
doc: add preliminary release notes for 0.9.0
gitian: Make windows dependencies outputs fully deterministic

Sort .zip order, and other determinism changes to make sure builds
are repeatable for windows deps.
Cleanup v0.9 release notes
Merge pull request #3642 from petertodd/v0.9-release-notes-formatting-fixes

v0.9 release notes formatting fixes