improve text of error message
more improvements to dependency-related error messages
eeek, after trying so hard not to break it, I broke it anyway :/
remove use of deprecated class for #1329
oops, missed the import
Added `-continue` option to low-level javac compiler (#1316)
Added `--continue-on-errors` to high-level Ceylon compile tool (#1316)
If the `--continue-on-errors` option is set for the compiler any errors encountered during the first phase of compilation will be ignored and code genration will continue as if nothing happened (#1316)
Added test for #1316