1.0.0

Changes:

• Update to Rust 1.48.0 #107
• Add type predicates #98
• Arithmetic predicates for number (Integer or Float) #95
• Add predicates to test value types #94
• Add duration query #90
• Add comparison predicates #89

Bugs Fixes:

• Serialization of cookie query for Expires attributes with hurlfmt #100
• Valid Jsonpath query is not parsed #93