Rephrase rule about empty lines between defs.
Add a rule about the names of conversion functions.
Add a quote by Alan Perlis to the Collections section.
Add a rule about :else in cond and condp.
more clear wording, but also see issue #20
Always require at least one space after ;
Mention the #_ reader macro.
Merge pull request #33 from uvtc/patch-5

more clear wording, but also see issue #20
Merge branch 'master' into zh_CN

Conflicts:
	README.md