- add support for building with VS2015 - update OpenSSL to 1.0.2j and libpng to 1.6.26 - **[qt]** change screen size in headless mode to a more sane value (1366x768) - **[qt]** allow screen size in headless mode to be overriden via environment variables - **[qt]** fix compilation failure on OS X 10.11 due to usage of deprecated APIs - **#1768**: allow using long argument list (without hardcoded limits) - **#2004**: **[qt]** fix rendering of form fields in PDF output - **#2353**: **[qt]** context.setLineDash doesn't work in Canvas - **#2416**: make background transparent by default for headers/footers - **#2463**: **[qt]** standardize rendering DPI to 96 - **#2673**: fail immediately in the build script if the Qt source is not available - **#2684**: **[qt]** fix crash in WebKit (RenderBlock::removeFloatingObjectsBelow) - **#2885**: enforce UTF-8 encoding for input strings in the API - **#2887**: improve docs to make examples of header/footer variables more explicit - **#3077**: use correct install path for man pages