~evhan/beaker unlisted

Add CHICKEN version constraint
Fix event mask check in `continue-program'
Switch to GDB-style prompt
Drop protocol-version definition guard
Avoid nested-let warning for named lets
Minor fix for unquote detection in vectors
Link to issue tracker on wiki page
Add `repair-repository` helper
Clean target build and install scripts
Add trailing newline to "chicken-lint -help" text
Include build dependencies in markdown generator
Avoid false-positive module reference warnings when compiler syntax is applied
Expand unnnecessary-quote warning to include blobs, strings, and so on
Enable quote and quasiquote lint rules
Add lint rule for unnecessarily nested `let' expressions
Skip SRFI 17-style `set!' forms in analyser
Fix debugger protocol version detection for versions > 0.3
Add link to repository to wiki page
Warn and exit when cdb is run on invalid CHICKEN