Prefix log messages with timestamp

Add time in milliseconds since the first log statement.

Task-number: QTIFW-496
Change-Id: I5db788e9570e0ae7abeb9946c709f3f38a1dca88
Reviewed-by: Niels Weber <niels.weber@digia.com>
Reviewed-by: Karsten Heimrich <karsten.heimrich@digia.com>
Update Changelog

Change-Id: Id134089e964d5cd10dd22e4f53623f59c66b95d8
Reviewed-by: Karsten Heimrich <karsten.heimrich@digia.com>
Reviewed-by: Kai Koehne <kai.koehne@digia.com>
Fix disk space checking for updates

Makes more sense to check only the space required by components that are
about to be installed, not that required by all components already
installed as well.

Task-number: QTIFW-434
Change-Id: I7b6b5425d5c77b50f1277855e6744596d06b44bc
Reviewed-by: Karsten Heimrich <karsten.heimrich@digia.com>
List disk space requirements prior to installation

Add a sentence to ReadyForInstallation page showing
the required space. So far we only had this in verbose
output.

Task-number: QTIFW-16
Change-Id: Id119d86e67162482f72ad692954902766985a37f
Reviewed-by: Karsten Heimrich <karsten.heimrich@digia.com>
Reviewed-by: Kai Koehne <kai.koehne@digia.com>
Fix compile on MacOSX

Change-Id: Ib95eb7259928bd5ec23bb2ea9c08c925a8bf170f
Reviewed-by: Karsten Heimrich <karsten.heimrich@digia.com>
Toggle details on ReadyForInstallation page with verbose mode

Removed the Details button, as it only confused people,
especially with the internal component names being shown
there. As it is essentially debugging output, it should
be toggled with the verbose switch, as is the rest of the
debugging output.

Task-number: QTIFW-140
Change-Id: I23dc5bd033a52cffc7cf811b6ec886a9db3a6a63
Reviewed-by: Karsten Heimrich <karsten.heimrich@digia.com>
Default to details on if verbose

If the installer is run in verbose mode, assume
that the user wants to see the installation details
on performinstallation page.

Task-number: QTIFW-140
Change-Id: Ic30eb8e0b757bca1c1cb22d9c643be44ffa7f93d
Reviewed-by: Karsten Heimrich <karsten.heimrich@digia.com>
Doc: fix syntax of EnvironmentVariable

Task-number: QTIFW-526
Change-Id: I4de4080f6b7f4a41d5425f19bcf39f2e1e1ce7ee
Reviewed-by: Kai Koehne <kai.koehne@digia.com>
Suppress spurious message box while accessing unmounted devices.

Task-number: QTIFW-530
Change-Id: I692f73f7959818cf3b14d1030b5e1269c56ad637
Reviewed-by: Kai Koehne <kai.koehne@digia.com>
Doc: clarify offline and online installers

Change-Id: Ic7b88f2811f00fea3e3144e9aa789726f8cb5dbe
Reviewed-by: Niels Weber <niels.weber@digia.com>
Doc: add image describing installer types

Illustrates differences between online and offline
installers.

Change-Id: I33649c37f08a9ffb809660a97dbfcb7a02dbf5d6
Reviewed-by: Niels Weber <niels.weber@digia.com>