v0.3.3

XML v0.3.3

Diff since v0.3.2

Merged pull requests:

• Fixed path definition error in README example (#20) (@Kevin-Mattheus-Moerman)
• update benchmarks and add h function (#23) (@joshday)

Closed issues:

• Help building XML documents programmatically (#21)
• Constants like pi or expressions like nothing, are not interpreted but result in "pi" and "nothing" (#22)