(cherry picked from commit b7159818)

(cherry picked from commit cb84e3f0)

Delete crashed if a fullNode contained a valueNode directly. This bug is
very unlikely to occur with SecureTrie, but can happen with regular
tries. This commit also introduces a randomised test which triggers all
trie operations, which should prevent such bugs in the future.

Credit for finding this bug goes to Github user @rjl493456442.

(cherry picked from commit c3a77d62)

(cherry picked from commit 710435b5)

(cherry picked from commit cd791bd8)

TravisCI and AppVeyor run the tests in very slow VMs.
Some of our tests can't cope with that. Running less tests
in parallel should make them somewhat less flakey.

(cherry picked from commit b0a6b979)

The redirect check did not work on Go 1.6 and below because Stat
returned an error for stdout and stderr. In Go 1.7 Stat works on stdout
but doesn't return anything meaningful, causing cmd/geth test failures
because the message is printed to stderr only. Fix it by printing to
stdout only.

(cherry picked from commit b04219fd)

(cherry picked from commit e11489eb)

[release/1.4.13] core/state: track all accounts in canon state

This change introduces a global, per-state cache that keeps account data
in the canon state. Thanks to @karalabe for lots of fixes.

(cherry picked from commit a59a93f4)

Geth 1.4.13

(cherry picked from commit 25ed5fed)

G

(cherry picked from commit 581b320b)

Geth 1.4.11

(cherry picked from commit bb8059f6)

Conflicts:
	core/blockchain.go
	core/database_util.go
	core/headerchain.go
	eth/filters/filter.go

(cherry picked from commit f0134f36)

(cherry picked from commit 4c2cc32f)

(cherry picked from commit d68865f3)

(cherry picked from commit 8f0a4a25)

(cherry picked from commit 071af57b)

(cherry picked from commit 1dd27208)

Conflicts:
	eth/handler.go
	eth/sync.go

The eth/61 protocol was disabled in #2776, this commit removes its
message handlers and hash-chain sync logic.

(cherry picked from commit 016007bd)

Conflicts:
	eth/handler.go
	eth/handler_test.go

(cherry picked from commit 8c23f20c)

The new build script, ci.go, replaces some of the older shell scripts.
ci.go can compile go-ethereum, run the tests, create release archives
and debian source packages.

(cherry picked from commit 6c33ba14)

Fixes #2825

(cherry picked from commit e4736fe4)

Fixes #2829

(cherry picked from commit 4be37222)

(cherry picked from commit c7c82f1b)

(cherry picked from commit 91f18ffd)

and locking bugs found in its wake.

(cherry picked from commit 51f8ce26)

(cherry picked from commit 993b4121)

(cherry picked from commit 2c2e389b)

(cherry picked from commit 32912357)

(cherry picked from commit 461cdb59)