v0.7.0

Kocha v0.7.0

This release contains the incompatible changes with previous releases.
Also the feature freeze until 1.0.0 release.

New features:

• request: Add Context.Request.IsXHR
• render: Add Context.Format
• template: Add join template func
• template: Add flash template func
• template: Template action delimiters now can be changed
• log: Add RawFormatter
• misc: Add ErrorWithLine

Incompatible changes:

• cli: Move to cmd directory
• template: {{define "content"}} on each templates are no longer required
• template: Suffix of template file changed to .tmpl
• render: kocha.Render* back to kocha.Context.Render* and signatures are changed
• kocha: Rename SettingEnv to Getenv
• middleware: Several features are now implemented as the middlewares
• middleware: Change interface signature

Other changes:

• log: Output to console will be coloring
• Some bugfix