Change tracing from qDebug() to use cutelogger, which is available under the
LGPL2.1. This allows to automatically add filename and line number to the log,
and also provides multiple log levels.

Change-Id: I5dbdaf902ba54ea99f07ae10a07467c52fdac910

Also change the double inclusion protection to match the filename.

Change-Id: I5bb64afdb62c87057867f9f9d683f0df239d2efc

When creating a new HttpGet object schedule any old one for deletion instead of
dropping its reference and relying on Qt to clean it up once the parent object
is removed.

Change-Id: I66f2a6f01c6b6ad3a0dce0eb4fd3eacfaf7e733d

The Quick Start tab turned out to be used a lot but not explaining what its
functionality actually does, leading to various amount of confusion. The Quick
Start tab and its functionality have been completely removed.

As replacement the reworked Installation tab now includes both the entries from
the old Installation tab (Bootloader and Rockbox) and the Extras tab (Fonts,
Themes, Game files). Each of the items can be enabled or disabled individually,
and the selection is saved in the configuration. The only exception is the
bootloader option, since installing the bootloader is only needed once. To help
with this the bootloader checkbox is automatically enabled if no Rockbox
installation is found, and disabled if one is found. While it would be nicer to
check if the bootloader is actually installed this is not possible for various
players so the implementation simply relies on a Rockbox installation.

This should also make it much easier to update an existing installation.

Current limitations:
- the selected themes are not saved.
- it is not possible to detect if the target has the plugins that require
  additional game files prior to installation. Thus the "Game files" option is
  available for all targets but simply skipped if the plugins are not found.

Change-Id: I1929bb7045e382fcbba431cca057d3121607d3a9

Instead of using some arbitrary and not really useful string use the timestamp
of the downloaded file if version string is provided by the caller. This also
makes it possible to check if the downloaded file is actually a different one.

Use it for manual and game file downloads, as this gives more reasonable values
than using the date transmitted for daily (archived) build and as support for
archived builds will be removed shortly.

Change-Id: I0c751fabe7bb516edca93a5f73f077a611d4ef87

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@30806 a1c6a512-1295-4272-9138-f99709370657

Allow passing an (optional) cluster size to round up all file sizes when
calculating the total size of an extracted zip archive. This allows to check if
the space on disk is actually sufficient without relying on an arbitrary
headroom value which might be wrong. Addresses FS#12195.

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@30214 a1c6a512-1295-4272-9138-f99709370657

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@29670 a1c6a512-1295-4272-9138-f99709370657

This change fixes problems with zip files created with newer zip utilities (a
known issue is the iLike theme). QuaZip also allows better feedback during
operations without changing the imported code. Additionally Rockbox Utility and
the Theme Editor are now both using QuaZip; currently Rockbox Utility uses a
copy of the sources, merging them later is planned.

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@29645 a1c6a512-1295-4272-9138-f99709370657

Move class-less functions in utils.cpp into a new Utils class and make the old
functions static. This prevents clashes with system C functions. Rename some
functions to avoid macro problems (check() is a macro on OS X). Split out the
RockboxInfo class into a separate file.

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@25441 a1c6a512-1295-4272-9138-f99709370657