anchor.diff:      + changedUntil (optional) - Filtering by import date - timestamp of import is stored within each row. Both until and since values can be a unix timestamp or any date accepted by [strtotime](http://www.php.net/manual/en/function.strtotime.php).
           Examples: `-2 days`, `1360138863`, `2013-02-12T15:19:21+00:00`
       + columns (optional) - Comma separated list of columns to export; by default all columns are exported.
  -    + whereColumn (optional) - Column for exporting only matching rows; see more in the rows filtering section.
  -    + whereValues[] (optional) - Values for exporting only matching rows; see more in the rows filtering section.
  -    + whereOperator (optional, enum[string]) - Operator for value comparison.
  +    + whereColumn (optional) - **Deprecated** (use whereFilters instead). Column for exporting only matching rows; see more in the rows filtering section.
  +    + whereValues[] (optional) - **Deprecated** (use whereFilters instead). Values for exporting only matching rows; see more in the rows filtering section.
  +    + whereOperator (optional, enum[string]) - **Deprecated** (use whereFilters instead). Operator for value comparison.
           + Members
               + eq - Equals - can be used with multiple values.
               + ne - Not equals - can be used with multiple values.
  
positive.code:     + changedUntil (optional) - Filtering by import date - timestamp of import is stored within each row. Both until and since values can be a unix timestamp or any date accepted by [strtotime](http://www.php.net/manual/en/function.strtotime.php).
          Examples: `-2 days`, `1360138863`, `2013-02-12T15:19:21+00:00`
      + columns (optional) - Comma separated list of columns to export; by default all columns are exported.
      + whereColumn (optional) - Column for exporting only matching rows; see more in the rows filtering section.
      + whereValues[] (optional) - Values for exporting only matching rows; see more in the rows filtering section.
      + whereOperator (optional, enum[string]) - Operator for value comparison.
          + Members
              + eq - Equals - can be used with multiple values.
              + ne - Not equals - can be used with multiple values.
          + Default: eq
      + gzip (optional, boolean) - The response will be gzipped if set to true.
  
  + Request
  
negative.code: #### Rows filtering
  Exported rows can be filtered by a single filter. Examples of filtering by `userId` column:
  
  - `whereFilters[0][column]=UserID&whereFilters[0][values][0]=123` - Single value filter is used on one column.
  Equals to `UsedId = 123`.
  - `whereFilters[0][column]=UserID&whereFilters[0][values][0]=123&whereFilters[0][values][1]=234` - Multiple value
  filter is used on one column. Equals to `UserId IN (123,234)`.
  - `whereFilters[0][column]=UserID&whereFilters[0][values][0]=123&whereFilter[0][operator]=ne` - Uses a non equals operator.
  Equals to `UserId != 123`.
  - `whereFilters[0][column]=Price&whereFilters[0][values][0]=40.3&whereFilters[operator]=gt&dataType=DOUBLE` - Uses greater than operator and cast value as double
  Equals to `Price > 40.3`.
  
   - For multiple filters use `whereFilters[0]...&whereFilters[1]...&whereFilters[2]...`. All filters are joined by AND expression.
  
  
  The comparison operator essentially behaves like the [SQL IN](http://www.w3schools.com/sql/sql_in.asp) (and NOT IN) operator. That is, the
  `eq` value matches if any `whereValues` match, and the `new` value matches if none `whereValues` match.
  