There seems to be no point in configuring the compiler argument per
project. This argument will be deleted soon anyway, when we remove
support for JDK 1.6 & 1.7.
Also remove `disableDeprecatedJvmTargetWarning`. It didn't have any
effect in all modules where it was applied because these modules
reassign `freeCompilerArgs` anyway, with
`-Xsuppress-deprecated-jvm-target-warning` in it.
With gradle > 5.0 `publish()` helper call should be done before
`noDefaultJar()` or any other artifact hacks, otherwise singing plugin doesn't sign any jars
since it is the right place to have it in the new structure.
Solves the problem that script-util classes not found then script
definition with context classpath is loaded by the scripting compiler
plugin, since script-util is not packed into embeddable plugin.
The old context utils are deprecated and in fact wrap the new utils.
#KT-26828 fixed (in fact - partially, see another related commit)
Vyacheslav Gerasimov