Merge pull request #3587

ceb8e22 [Qt] allow translation of client bitness (Philip Kaufmann)
Increase default dbcache to 100 MiB
add constants for shared (GUI/core) -dbcache settings

- adds nDefaultDbCache, nMaxDbCache and nMinDbCache in txdb.h
[Qt] small .ui cleanup for optionsdialog and coincontrol
Merge pull request #3690 from laanwj/2014_02_gettransaction_serialize_only_tx

Serialize only CTransaction data in gettransaction RPC hex
Merge pull request #3679 from laanwj/2014_02_walletpassphrase_behavior

Document new `walletpassphrase` behavior in 0.9
Fix crash in importwallet and dumpwallet formatting

- DecodeDumpTime was passing a statically allocated facet object to
  std::locale. However, "The constructed locale object takes over
  responsibility for deleting this facet object." causing a free()
  crash on scope exit. Fixes #3670.

- EncodeDumpTime was using the wrong format character for dates
  (appears accidentally introduced in 51ed9ec9)
Merge pull request #3691

a143d4c Fix crash in importwallet and dumpwallet formatting (Wladimir J. van der Laan)
Merge pull request #3687

82e9600 add constants for shared (GUI/core) -dbcache settings (Philip Kaufmann)
879b390 Increase default dbcache to 100 MiB (Pieter Wuille)
Merge pull request #3693

f05fa03 [Qt] small .ui cleanup for optionsdialog and coincontrol (Philip Kaufmann)
Change new constants in txdb.h to int64_t

A shift overflow was happening when using these to check against in init.cpp.
Fixes #3702.
Wallet locking fixes for -DDEBUG_LOCKORDER

Compiling with -DDEBUG_LOCKORDER and running the qa/rpc-test/ regression
tests uncovered a couple of wallet methods that should (but didn't)
acquire the cs_wallet mutext.

I also changed the AssertLockHeld() routine print to stderr and
abort, instead of printing to debug.log and then assert()'ing.
It is annoying to look in debug.log to find out which
AssertLockHeld is failing.
qt: Rename 'Confirmed' balance to 'Spendable' on overview page

The word 'Spendable' more precisely says what the balance actually means.

Avoids the confirmed/unconfirmed confusion that can be caused by #3676.
Merge pull request #3699

ddcabae qt: Rename 'Confirmed' balance to 'Spendable' on overview page (Wladimir J. van der Laan)
Merge pull request #3703

ad54a9b Change new constants in txdb.h to int64_t (Wladimir J. van der Laan)
Display progress of rescan.
Add progress to initial display of latest block downloaded.
Merge pull request #2910

d8b4b49 Don't store or send side-chain blocks lower than last checkpoint. (Ashley Holman)
add test of DecodeBase58 skipping whitespace
script: tighten multisig non-standard rules: do not relay pubkeys above 65 bytes