Release of v1.2

 * Take increased Mk2 buffer size into account, implemented new method to automatically determine it
 * Fix CMake to work with new official pluto6 fork
 * Try to avoid Clusters with `NaN` times if they're marked as `BadTDC`
 * Helper functions added to switch off Tagger range and get a list of BaF2 and PbWO4 channels
 * More Setups added
 * Minor improvements and changes

 * Ant-mcgun: Added option to generate particles with a flat theta distribution

 * Tests: ROOT6 integrated in CI build and testing with Travis

Finalized ROOT6 migration, minor improvements

 * Fix some warnings related to the ROOT6 migration
 * Fix linker problem on some recent OS systems
 * Fix warnings when compiling with Clang 6.0

 * Add some easy methods for manipulating and modifying hstack objects, like Rebin, Add, Multiply, and Divide
 * Code moved from A2-Collaboration-dev to A2-Collaboration

 * Update documentation

Adapted Ant to work with ROOT6 and new Pluto test release

Ant is now ready for GCC8

New Tagger integrated in Ant, provide Setup base class