v0.1.1

Try v0.1.1

Diff since v0.1.0

Merged pull requests:

• Setup TagBot (#37) (@tkf)
• Fix URL (#40) (@tkf)
• Add method Ok() = Ok(nothing) (#42) (@tkf)
• Add Try.unwrap_or_else (#43) (@tkf)
• Add Try.@return (#44) (@tkf)
• Fix macro docs (#46) (@tkf)
• Add "and" and "or" functions and macros (#47) (@tkf)
• Add Try.map (#48) (@tkf)