Silence useless warning in src/json/json_spirit_writer_template.h to make important warnings easier to see.

warning: typedef ‘Char_type’ locally defined but not used [-Wunused-local-typedefs]
Update build docs that refer to old makefile.* files.

Also update pull-tester's error message.
doc: add note about building on Ubuntu 13.10

Also mention `autoconf` as required package.
Merge pull request #3232 from laanwj/2013_11_ubuntu1310

doc: add note about building on Ubuntu 13.10
configure: Simplify common AM_CPPFLAGS and AM_LDFLAGS to a Makefile.common
Merge pull request #3231 from brandondahler/doc-autotool-update

Update build docs that refer to old makefile.* files.
configure: Automatically disable bitcoin-qt by default, if dependencies are not met
Merge pull request #3233 from laanwj/2013_11_autoconf

Autoconf improvements
doc: replace DOS with MSYS shell to be more consistent

A plain DOS window doesn't have the right path settings, whereas
the MSYS shell window does.
[Qt] paymentserver: start netManager in uiReady()

- remove explicit init of netManager as this is done in the constructor
  anyway
- move initNetManager() call to uiReady(), which removes an assert() and
  allows us to use message() in initNetManager() (currently unused but
  could be necessary because of proxy related messages)
- make initNetManager() private
- update paymentservertests.cpp
Space saving in /doc README.

Fixed. Split off build, and bootstrap link.
qt: add Open URI dialog
Merge pull request #3215 from laanwj/2013_11_openuridialog

qt: add Open URI dialog
Merge pull request #3138 from super3/master

Squash README
Merge pull request #3187 from Diapolo/netManager

[Qt] paymentserver: start netManager in uiReady()
misc small changes to polish after include cleanup
[Qt] remove GUIUtil::getSaveFileName() default arguments

- harmonize function with GUIUtil::getOpenFileName()
- also make PNG Image singular (grammar)
Merge pull request #2980 from wtogami/silenceunusedwarning

Silence useless warning in src/json/json_spirit_writer_template.h to mak...
Merge pull request #3235 from Diapolo/misc

misc small changes to polish after include cleanup
Merge pull request #3238 from Diapolo/guiutil

[Qt] remove GUIUtil::getSaveFileName() default arguments