3.15.0

• Make dialyzer output file format configurable
• Fix DAG resolving for recursive directories
• Add EUnit support for sys_config options
• Catch and report missing escript dependency
• Relay unexpected relx return values
• Bump Relx and cth_readable
  • relx_resolve:to_app raise error with .app file pathname
  • Concurrent Builds - xref interactions refinement
  • Add richer return values for nodetool rpc
  • add exports of RELEASE_NAME, RELEASE_VERSION and RELEASE_PROG to script
• add an option to select the application to build an escript for
• Do not discard parameters --system_libs and --include-erts
• Have "rebar3 plugins upgrade" work without specifying plugin name
• rebar3 shell: implement various modes to print "booted" message
• More path juggling fixes in the compiler
• Fix OTP24 complaining about underscored variables
• Handle OTP-24 function location in xref
• pass no_spawn_compiler_process to compile:file/2