New build of Client Terminal: MetaTrader4 build 151

MetaTrader4 build 151.

What’s new:
1. Updated expert advisor recompilation.
2. By initialization the indicator arrays are zero-filled. 3. Updated MetaEditor help-files. 4. Updated pending order modification.
`5. Updated duplicating objects: objects parameters are not replaced by defaults.
6. Updated trailing-stop levels drawing.
7. Updated ColorPicker module in dialogue of experts advisor.
8. Updated deinit() function in MQL4.