Add new method LoadHTMLFilesRecursively for recursively load template files in a folder

[KimGenius]

#1296

fixed the conflicts!

[thinkerou]

error:

# github.com/gin-gonic/gin [github.com/gin-gonic/gin.test]
./gin_test.go:61:6: setupHTMLFiles redeclared in this block
	previous declaration at ./gin_test.go:28:85
./gin_test.go:62:5: setupHTMLFiles.func1 redeclared in this block
	previous declaration at ./gin_test.go:33:19
./gin_test.go:70:23: setupHTMLFiles.func1.1 redeclared in this block
	previous declaration at ./gin_test.go:40:23
./gin_test.go:73:22: setupHTMLFiles.func1.2 redeclared in this block
	previous declaration at ./gin_test.go:43:22
./gin_test.go:233:22: too many arguments in call to setupHTMLFiles
	have (*testing.T, string, bool, func(*Engine))
	want (*testing.T, string, bool)
./gin_test.go:241:10: ts.Close undefined (type func() has no field or method Close)
./gin_test.go:243:48: ts.URL undefined (type func() has no field or method URL)
./gin_test.go:253:22: too many arguments in call to setupHTMLFiles
	have (*testing.T, string, bool, func(*Engine))
	want (*testing.T, string, bool)
./gin_test.go:261:10: ts.Close undefined (type func() has no field or method Close)
./gin_test.go:263:48: ts.URL undefined (type func() has no field or method URL)
./gin_test.go:263:48: too many errors
FAIL	github.com/gin-gonic/gin [build failed]
FAIL
Makefile:11: recipe for target 'test' failed
make: *** [test] Error 1
The command "make test" exited with 2.

[locnguyen]

@KimGenius I'd love to see this PR merged soon!

[4n70w4]

Hi! Any news?

[thinkerou]

Hi! Any news?

@KimGenius please fix error: https://travis-ci.org/github/gin-gonic/gin/jobs/768698874, thanks!

[KimGenius]

Sorry everybody
I will fix error in few days
Thank you!

[zzjin]

any update here?

[yanislav-igonin]

few days lol