[skip ci]

Implements #6211.

1e44169f Add tests for CCoins deserialization (Pieter Wuille)
5d0434d1 Fix OOM bug: UTXO entries with invalid script length (Pieter Wuille)
4bf631e5 CDataStream::ignore Throw exception instead of assert on negative nSize. (Patrick Strateman)
4f87af6f Treat overly long scriptPubKeys as unspendable (Pieter Wuille)
f8e6fb18 Introduce constant for maximum CScript length (Pieter Wuille)

62a9abd1 Fixing comment in script_test.json test case (Chris Stewart)

a33b7c9c travis: temporarily disable qt to avoid timeouts (Cory Fields)
174023c9 travis: Don't disable writing ccache for pull-requests (Cory Fields)
cf77fcdb travis: drop MAKEJOBS=2 for windows compilers (Cory Fields)
9267a47d depends: enable pre-compiled headers for qt (Cory Fields)
06fdffd2 travis: switch to Trusty (Cory Fields)
a6666b25 depends: mac deploy Py3 compatibility (Wladimir J. van der Laan)

89c844df Re-instate TARGET_OS=linux in configure.ac. Removed by 351abf9e. (randy-waterhouse)

These builds take longer than they did on precise. Disable them now to keep
things working, we can re-enable them after experimentation

This was doing more harm than good. The original intention was to speed up
builds, since a PR's ccache results will be thrown away anyway.

However, each PR maintains its own cache, so disabling writes means that
subsequent pushes don't benefit from the fresh cache. This is significant when
(for example) many headers are touched in a PR, then the PR is updated. With
this change, the updated PR will take advantage of the cache generated during
the PR's previous build.

These were only in place because of the old precice mingw toolchain

All trusty compilers work ok with this now, and it shaves a few minutes off of
build time

c3932b32 List solvability in listunspent output and improve help (Pieter Wuille)

Previously disk corruption would cause an assert instead of an exception.

f1544700 [contrib] Remove reference to sf and add doc to verify.sh (MarcoFalke)
182bec42 contrib: remove hardcoded version from verify.sh (Wladimir J. van der Laan)
c907f4d5 doc: Update release process (Wladimir J. van der Laan)

Closes #7595 as by removing the hardcoded version number from
`verify.sh`.

The actual release process quite diverged from what was written here,
also clarify things a bit.

869cf123 dbwrapper: Move `HandleError` to `dbwrapper_private` (Wladimir J. van der Laan)
b69836d6 dbwrapper: Pass parent CDBWrapper into CDBBatch and CDBIterator (Wladimir J. van der Laan)
878bf480 dbwrapper: Remove CDBWrapper::GetObfuscateKeyHex (Wladimir J. van der Laan)
74f7b127 dbwrapper: Remove throw keywords in function signatures (Wladimir J. van der Laan)

HandleError is implementation-specific.

Pass parent wrapper directly instead of obfuscation key. This
makes it possible for other databases which re-use this code
to use other properties from the database.

Add a namespace dbwrapper_private for private functions to be used
only in dbwrapper.h/cpp and dbwrapper_tests.

It is an unnecessary method as it is used only two times
and only internally, and the whole implementation is
HexStr(obfuscate_key).

Using throw() specifications in function signatures is not only
not required in C++, it is considered deprecated for
[various reasons](https://stackoverflow.com/questions/1055387/throw-keyword-in-functions-signature).
It is not implemented by any of the common C++ compilers. The usage is
also inconsistent with the rest of the source code.

f59dceb4 qt: Fix out-of-tree GUI builds (Wladimir J. van der Laan)

Without this patch:

- When I compile the GUI from the bitcoin directory itself, it works as
  expected.

- When I build the GUI in an out-of-tree build, I cannot get it to
  select tabs. When I click, say the "Receive" tab nothing happens,
  the button selects but it doesn't switch the page. The rest - even
  the debug window - seems to work.

See full discussion here:
https://github.com/bitcoin/bitcoin/pull/7911#issuecomment-212413442

This turned out to be caused by a mismatch in the arguments to moc,
preventing it from finding `bitcoin-config.h`. Fix this by passing
`$(DEFAULT_INCLUDES)` to it, which gets set to the appropriate
path by autoconf itself.

a4625acb leveldb: integrate leveldb into our buildsystem (Cory Fields)

57704499 CBase58Data::SetString: cleanse the full vector (Kaz Wesley)

3a99fb2c Fix headers announcements edge case (Suhas Daftuar)

9f7336b4 [Wallet] slightly refactor GetOldestKeyPoolTime() (Jonas Schnelli)

SetString seems to be passing the length of the wrong variable to
memory_cleanse, resulting in the last byte of the temporary buffer not being
securely erased.

This fixes the gitian MacOSX build, it was broken in #7723.

The patch to `native_mac_alias` should probably make it upstream.

807fa47a Tests: Fix deserialization of reject messages (Suhas Daftuar)

fa243293 [contrib] verify-commits: Add MarcoFalke fingerprint (MarcoFalke)