Fixes to Basque translation.
Fix --add-comments breakage in default parser configs.

Commit 025eccd12e1167ab42ae6db4000290e7d6d494e8 incorrectly omitted
space before --add-comments flag.  This resulted in broken scanning of
sources for anybody who installed a new install of 1.5.6 (as opposed to
upgrading from previous versions).

Correct this and also include code to automatically fix borked
configurations.

Fixes #536.
Increase version to 1.5.7, update NEWS.
Merge branch 'stable'
Require wxWidgets >= 2.9.5.

Require current version of wx.

Remove compatibility or workaround code for older versions.
Fix deps build to include compile-db on OS X.
Get rid of the _T() macro.

It's not needed anymore when using wx-2.9.
Update wxWidgets snapshot.
Rename deps/vs2012_build to custom_build.

Will reuse the directory for customized OS X builds as well, so a more
generic name makes sense.
Use custom Xcode projects for wxWidgets.
Set MACOSX_DEPLOYMENT_TARGET to 10.7.
Only build 64bit binaries for OS X.

All hardware that supports 10.7 Lion (the minimum version now) is 64bit
and capable of running 64bit binaries.  Moreover, the Objective-C
runtime is only developed in 64bit version and new features, such as
ARC, aren't being added to the "classic" 32bit runtime.
Use the Clang compiler on OS X.

It was mostly used already, just make sure Ant-built deps use it too.

Fix Berkeley DB compilation with Clang.
Upgrade wxWidgets project to 3.2 format.
Enable Clang to use C++11 and libc++.

This is the modern runtime: Clang, C++11 mode (minus some dependencies
that failed - db in particular, which is not worth updating) and the new
libc++ standard library.
Use ARC in Objective-C code.

Another nice thing enabled by moving to 10.7+, 64-bit only.
Merge branch 'osx-deploy-10.7'

The OS X build now requires at least 10.7 Lion. Consequently, it is
possible to build only 64-bit binaries, as any hardware capable of
running Lion is 64-bit. This enables lots of things, such as using
modern Objective-C runtime, with ARC, or being able to use the Clang
compiler with C++11 and libc++.
Build wxWidgets with wxUSE_STL.

Using standard containers is more interoperable with std:: code.
Fix misc Visual C++ warnings.
Fix lots of Xcode warnings.

Get rid of some wx warnings, disable some not-easily-fixable stuff.
Correct all warnings in Poedit itself.