** Bumped version into 3.0.15-SNAPSHOT
** Fixed issue #48
** Added added text about open source, contacting and thanks into about
page
** Changed text orders in about page
** Updated about menu links to match titles in about page
** Fixed issue #51 and related bug on other menus
** Changed z-index into 9999 in menu so it would always be top most
** Hided price on non purchasable publications
** Changed listPublicationsByTags method to
listPublicationsPublishedAndByTags in PublicationController
** Fixed issue #53
** Changed max listed publications in game library index into 15
** Fixed issue #54
** Added generic user comparators for first and last name
** Removed friend dependency from publication author list
** Changed game library to use https
** Changed game libary management to use https version of creative
commons by-sa by default
** Added https support into CC license
** Changed Google fonts to use https
** Changed version into 3.0.15