added root project to aggregate subprojects with cross-dependencies;
moved util source to util submodule;
renamed directory scutil => compiler;
unified group (it's feh.util.util now);
ExecutableBuilder renamed;
some utility methods added;
sbt-idea version update to 1.6.0
sbt version upgrade to 0.13.5 and cleaned deprecations in project definition;
shell-utils subproject added;
Dependencies definitions, project build utils and test definitions all moved to separated files in project/;
add ProcessWrappers util to shell-utils and tests for it;
added task for copying generate markdown to $project_base/test-reports;
see README.md for more info;