添加Enter、Tab；细节优化

• Support JavaSript
• Add smarter Enter key with ignoring right parentheses and auto indentation
• Add smarter Tab key with skipping and inserting in a parameter list
• Hide suggest after point -> if exists variable on the right
• Repair the case of cout < <
• Support more case like converting qDebug(),, to qDebug() <<
• Auto detect whether < > or " " to be used after #include by space key
• Completely fix converting 9 / 0 to () twice
• Fix putting the current line in the code block bt [
• Add { } at the end of the line beginning with if/for/...
• Auto indent when inserting { } in a blank line