1.0.0-beta.7

• Fixed syntax.tokenize() method to use a tolerant parser when tolerantMode parameter is true
• Fixed parsing failures in tolerant mode on blocks [], .[], (), .() and ..() when their body starts with an operator, a keyword, etc.
• Fixed suggestions when pattern is a single quoted string (i.e. for 'foo' in .[field='foo'])
• Fixed suggestions for Pick nodes when query is a complex expression, e.g. a function (#35)
• Fixed suggestions for Block nodes with empty body in strict parse mode
• Fixed processing \0 in strings as a null character for a parity with JavaScript
• Fixed Indentifier node to store an empty string as a name instead of _ for placeholder identifiers in tolerant parse mode. This fixes the problem of restoring a query from an AST after parsing in tolerant mode
• Added Placeholder node type
• Changed Block node to store a Placeholder node instead of null when block's body is empty