Enable usage of categorized repositories

This change allows to categorize repositories in component selection
page. Using categorized repositories will by default show only
uncagetorized repository items in tree. Selecting one or several categories
using checkbox will update the treeview to show all selected categorized repository
content. Repository's metadata is fetched only after the category is selected.
Categorized repositories can be defined in config.xml:
<RepositoryCategories>
    <RemoteRepositories>
    <Displayname>category 1</Displayname>
    <Repository> <Url>(url)</Url></Repository>
    </RemoteReposiories>
    ...
<RepositoryCategories

Change-Id: I6eae9daee70b1afa322144d52c11f25d0b655ebf
Reviewed-by: Jani Heikkinen <jani.heikkinen@qt.io>
Reviewed-by: Iikka Eklund <iikka.eklund@qt.io>

1 files changed, 1 insertions, 0 deletions

diff --git a/src/libs/installer/constants.h b/src/libs/installer/constants.h
index 0e9646737..26c2a7dfe 100644
--- a/src/libs/installer/constants.h
+++ b/src/libs/installer/constants.h
@@ -91,6 +91,7 @@ static const QLatin1String scAllUsers("AllUsers");
 static const QLatin1String scSupportsModify("SupportsModify");
 static const QLatin1String scAllowUnstableComponents("AllowUnstableComponents");
 static const QLatin1String scSaveDefaultRepositories("SaveDefaultRepositories");
+static const QLatin1String scRepositoryCategoryDisplayName("RepositoryCategoryDisplayName");
 
 const char scRelocatable[] = "@RELOCATABLE_PATH@";