Save data_readers.clj file to assets

Saving them to resources doesn't work well because it requires
eval'ing inside the project before the resources are generated; and if
there are Java classes that rely on the R file, it blows up.
Extract resources from dependency libraries

This allows to use resources bundled inside dependency JARs without
falling back to library projects.
Pack resources on `jar` subtask when building libraries
Refactor usage of read-binary-file
Update template to use splash
Update sample project to use splash
revert set-profiles to unmerge-profiles and merge-profiles
Prepare 0.2.0-beta1 release
Rewrite README
Next development iteration
Remove utilities to bundle resource in JARs

I wasn't able to make it work reliably, so I suspend them for now.
Add splash utilities to `new` template

This was moved here from Neko after it didn't work out to have splash
in a library.
Update sample project to use new splash
Prepare 0.2.0-beta2 release
Next development iteration