GUIUtil: make getSaveFileName() use native OS path separators
[Qt] additional small fixes for #3099 (new receive flow)

- remove 2 unneeded windowTitle attributes, which bloat our translations
- cleanup some unneeded .cpp/.h includes and class usages
- use a more generic string for clearing sendcoinsdialog and
  requestpaymentdialog
- edit 2 strings in BitcoinGUI and replace "edit" with "show" as this
  seems more clear in the context where it is used
Fix comparison tool by asking for blocks more aggressively
Re-enable BitcoindComparisonTool:

 * Use the latest version, with limited memory usage, and path to
   on-disk db (try mouting qa/tmp on a tmpfs)\
 * enable -debug=net
 * re-enable BitcoindComparisonTool in pull-tester
qt: clean up signal handling in walletframe/walletview

Use proper signals everywhere.
Removes the need to store a pointer to the BitcoinGUI object in
the walletview.
Also removes the interdependence between setWalletModel / setBitcoinGUI.
Merge pull request #3151 from laanwj/2013_10_walletview

qt: clean up signal handling in walletframe/walletview
Merge pull request #3150 from Diapolo/misc

[Qt] additional small fixes for #3099 (new receive flow)
qt: english language update
Merge pull request #3165 from laanwj/2013_10_english_lang

qt: english language update
Merge pull request #3158 from Diapolo/guiutil

GUIUtil: make getSaveFileName() use native OS path separators
Make large-reorg tests optional in block-tester
pull-tester.py: Re-enable coverage msg, new args to run test script
Merge pull request #3164 from TheBlueMatt/master

Re-enable BitcoindComparisonTool on pull-tester
Gracefully handle the case when a DISTDIR already exists
Run block tester and test suite on Windows too (only on Jenkins)
Fix port binding by listening on port $BASHPID
Merge pull request #3174 from TheBlueMatt/master

Re-enable Jenkins and run more tests on Jenkins than pull-tester gets
Missed an RPC port
Merge pull request #3175 from TheBlueMatt/master

Missed RPC port
qt: make receive coins tab look more consistent with send coins tab

Use a GridLayout instead of a FormLayout. This makes the alignment
of the labels consistent between the tabs.