Fix some copyright headers

Change-Id: I5a6bba98684208cf7ca5fb30b4bd29635c4c0f21
Reviewed-by: Tobias Hunger <tobias.hunger@theqtcompany.com>
JsonWizard: Allow for more control of line layout in templates

Expand "\n", "\\" and "\t" in the templates to a linebreak/single '\'
character/tab respectively. Also enable line continuation with a '\'
character followed by a line break.

This allows for nicer output from the templates, avoiding spurious
blank lines in places.

Change-Id: I224b49e799f306dcb8fb8aa8ab2ea52733aecfa4
Reviewed-by: Daniel Teske <daniel.teske@digia.com>
Reviewed-by: Tobias Hunger <tobias.hunger@theqtcompany.com>
JsonWizard: Make the form page available to the JsonWizard

Change-Id: I86d8a199b1c3ed973b32335d14a9cd7e0d23fdbf
Reviewed-by: Daniel Teske <daniel.teske@digia.com>
JsonFilePage: Take InitialPath and InitialFileName for initialization

... during initializePage. This allows the JsonWizard to change the default
file name based on secetions on earlier pages.

Change-Id: I8569c23958339782ea21d56b54208812f6fa608e
Reviewed-by: Daniel Teske <daniel.teske@digia.com>
JsonWizard: Replace FormWizard with JsonWizard

Change-Id: Id469ee792e148d83b33002ee8295d15b5175ebbd
Reviewed-by: Daniel Teske <daniel.teske@digia.com>