[DS-1832] Proxy configuration set in system properties if empty
[maven-release-plugin] prepare for next development iteration
Update master branch to next major release
[DS-1744] Upgrade to latest log4j
Merge pull request #428 from KevinVdV/DS-1832

[DS-1832] Proxy configuration set in system properties if empty
DS-1757:Missing images in mobile theme

Removed link to mobile-default-thumbnail.png and changed to default-thumbnail.png which already existed.
DS-1756:Wrongly aligned text on mobile theme

Removed margin-left: -35px; which pushes "There are no files associated with this item." over to the right. I tested this in firebug.
Added contextPath 

Added context path per helix84.
Merge pull request #435 from misilot/patch-2

DS-1757 Missing images in mobile theme
Merge pull request #436 from misilot/patch-3

DS-1756 Wrongly aligned text on mobile theme
DS-1878 make search URL recognize Lucene/Discovery in mobile theme
Merge pull request #444 from helix84/DS-1878-mobile-theme-search

DS-1878 make search URL recognize Lucene/Discovery in mobile theme