Htmlquery Versions Save

• LoadURL() supports gzip and deflate encoding for HTTP request.
• update github.com/antchfx/xpath to v1.3.0 (https://github.com/antchfx/xpath/releases)

update https://github.com/antchfx/xpath to v1.2.3 fix deadlock(v1.2.2) in the concurrent goroutines. fix #58

PR #54

update the dependence packages:

• github.com/antchfx/xpath v1.2.2
• github.com/golang/groupcache v0.0.0-20210331224755-41bb18bfe9da
• golang.org/x/net v0.5.0

update dep package xpath to v1.2.1 to fixed some XPath query bug.

update dep package xpath to v1.2.0

add go.mod.

Update xpath to v1.1.6

merged PR #21 fix #19 , add write lock.

fix #19

Add built-in query object caching #16

Added LoadDoc (@subsr97) #18

New methods: Query and QueryAll, it compatible with invalid XPath error.

New methods: QuerySelector and QuerySelectorAll , accept the xpath.Expr object as query argument.