tests: improved Latte tests, removed codefix()
Latte: optimizePhp() moved to Latte\Helpers
Latte: optimizePhp() supports <?xml declarations
Latte: new Engine API
tests: Latte tests updated for new API
Latte: removed Compiler::$defaultContentType (BC break)
Latte: added Parser::setContentType()
Latte: deprecated Nette\Templating\FilterException, replaced with Latte\CompileException (BC break)
Latte: uses its own caching mechanism, now is required to call setTempStorage() (BC break)
Strings::toAscii(): support for czech quotation marks
Strings::toAscii(): add french quotation marks, remove iconv dependency
Strings::toAscii(): change french quotation marks replacement