v0.44.0

Most relevant commits:

• cmd/scriggo: remove outdated limitation in the help
• runtime: declare 'Format' and 'Context' types for renderer
• runtime: don't pass a 'Context' to 'Renderer.Text' but two booleans
• compiler/emitter: add support for indirect input parameters
• templates: fix stack overflow checking templates
• all: use the expression 'template file' instead of 'template page'
• compiler/emitter: fix an invalid behavior with 'return f()'
• compiler/disassembler: fix panic disassembling 'IfFloat' operation
• compiler/parser: fix error message when '%}' is expected
• compiler/emitter: support non local upvars in function literals
• cmd/scriggo: fix typo and formatting in the help
• compiler/emitter: move check on max select cases from runtime to emitter
• compiler/parser: fix parsing function parameters with non-final ellipses
• templates/builtin: handle semicolon error in queries