Miscellaneous naming conventions

CI guidelines have some general naming conventions, such as the following:

Your classes, functions, and parameters should have short names, and if constructed from several words they should use the underscore separator as follows:
```
// several lowercase words naming with under score
get_file_properties();
```
When defining a string value, in case the string does not have a parameter to evaluate, we shall use a single comma as follows:
```
$my_string   = 'the string';
```
In case we want our string to have a parameter such as $name, we write our string using double quotes:
```
$name = 'big string parameter';
$my_string = "This is a $name ";
```

The Boolean and contacts all should be in upper case:

$this_vale = FALSE;
// While in javascript we shall use true / false 
// to distinguish

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