added many rpc wallet tests

deleted the empty no throw test in rpc_wallet_tests line 65

fixed some comments

starting verify tests

finished verify message tests

changed some comments
[Qt] ensure payment request network matches client network

- replaces checks in SendCoinsDialog::handlePaymentRequest() that belong
  to PaymentServer (normal URIs are special cased, as only an isValid
  check is done on BTC addresses)
- prevents the client to handle payment requests that do not match the
  clients network and shows an error instead (mainly a problem with
  drag&drop payment requests onto the client window)
- includes some small comment changes also
Fix incorrect checkpoint data for testnet3
Remove unused imports in macdeploy script
add DEFAULT_UPNP constant in net

- as this is a shared Core/GUI setting, this makes it easier to keep them
  in sync (also no new includes are needed)
Doc: Always use absolute paths
doc: Clarify wording about testing in README.md

Weaken and clarify the wording a bit, it currently implies that we get
more pull requests than we can ever handle which discourages
contribution.
release: Bump the OSX SDK to 10.7 for gitian builds

This fixes the display on Retina Macbooks. It also moves us away from depending
on the ancient XCode3 sdk.
Merge pull request #4184

122549f Fix incorrect checkpoint data for testnet3 (David Hill)
Merge pull request #4195

f701da8 Doc: Always use absolute paths (Kosta Zertsekel)
Spelling fix in comment

Rebased-By: Wladimir J. van der Laan <laanwj@gmail.com>
Rebased-From: 3704a6a
[Qt] Fix Start bitcoin on system login
Merge pull request #4245

066d9a5 [Qt] Fix Start bitcoin on system login (Cozz Lovan)
Merge pull request #4132

d4e1c61 add DEFAULT_UPNP constant in net (Philip Kaufmann)
rename fNoListen to fListen and move to net

- better code readability and it belongs to net
- this is a prerequisite for a pull to add -listen to the GUI
Merge pull request #4229

2869b13 release: Bump the OSX SDK to 10.7 for gitian builds (Cory Fields)
gitian: Add cfields to gitian download scripts
No references to centralized databases in help text.
Merge pull request #4251 from theuni/cfields-pgp

gitian: Add cfields to gitian download scripts
Fix name of Cory's pgp key