Documentation updates
Renamed count-spaces to regex-spaces
Rename no-exc-assign to no-ex-assign and add to config
Fixed error in no-ex-assign when return statement as found in catch clause
Rule: No unnecessary semicolons (fixes #158)
Rule: no-self-compare
CLI refactor to remove process.exit(), file not found now a regular error message, updated formatters to handle this case
Merge pull request #160 from ilyavolodin/no-self-compare

Rule: no-self-compare (fixes #159)
Rule: No multiline strings
Merge pull request #133 from ilyavolodin/no-multiline-str

Rule: No multiline strings. (fixes #132)