- drop fillThis: handle in injectStreams instead
- simplify InputParser construction (at the expense of implementation simplicity)
- split out ScopeKey/initialization parts of Setting with separate Initialize trait
+ makes Apply obsolete
+ makes the Initialize trait properly composable
+ this allowed splitting the InputParser definition into
an Initialize for parsing and one for the action
- implement test-only
- inject resolved scope
- make all constructing methods end in = for lowest precedence
- rename Scope constructing method 'apply' to 'in' to allow 'apply' to
be used on single settings as well as tuples and 'in' reads better
- support import clauses
- error display: source name, line numbers for each expression
- for 'eval', 'get', 'set', and .sbt files, use default imports and import from Plugins, Builds
first phase resolves referenced build URIs as each build is loaded
second phase resolves references without an explicit project ID
(this requires the whole structure to be known and this isn't available during the first phase)
setting resolution is unchanged (done after both phases)
finish alias support
better project printing in 'projects'
completion support for 'help'
resolve URIs in ProjectRef against base URI of defining build in keys and project relations
resolve base directories and record build URI in BuildUnit
preserve relative paths in File to URI conversion for later resolution