Minor fixes

Added the balance change alert to the additional parameters (in %).

Fixed errors.

Added alerting of margin level, position volume, profit and loss.
Parameters are now set in a separate interactive menu.
Added a button for showing/hiding comments, blinking of a broken line.

Added hot keys.

Successive pressing of Ctrl followed by "1"|"2"|"3" opens a trade report in a separate window:
- "1" - for the current symbol,
- "2" - for all symbols,
- "3" - for all but the current symbol.

Ctrl followed by "I" shows Account Information.
Ctrl followed by "S" shows Symbol Information.
Ctrl followed by "M" opens the margin change grid in a separate window.
Ctrl followed by "A" shows and hides the menu of parameters.

Fixed errors.

Extended functionality.