#1008 Changed redirect URL creation logic, returning warning messages about non-created redirects
#1008 Created styles for failed / success / warn statuses; updated import results grid;
#1008 Blogs import: added checkbox for select/deselect all, changed rendering of results grid
#1008 Fixed import on Amazon / Azure cloud storage (returning stream position to 0 before proceed)
#1008 Removed c:\fakepath in chrome, when uploading the import file
#1008 Added meta title when importing the blog posts
#1008 Added duplicate id validation, added sample import file
#1008 Url is being created from name / title
#1020 Finished blog posts exporter, created tests for export service
#1020 Blog posts exporter modifications
#1020 Blog posts: fixed dates import / export
#1008  Fixed blogs import file on IE
#1008  Added validation, if referenced category / author exists in importing authors / categories list; fixed exception handling, when import fails;
#1008 Fixed security of blog posts importing
#1020 Exporting only published posts with published contents; added distinct for filtering out duplicate rows;
#1008, #1020 Fixed roles for importing / exporting blog posts
#1020 Fixed broken blog posts export test
#1039 Blogs import: fixed creation of blog posts URLS; fixed exception handling when uploading import file;
Merge branch 'dev' into dev-1.7.0-api-upgrade
Created put method for saving a blog post