- Fixed \snippet paths
- Minor language edits
- Removed unnecessary multiple page commands in a single comment
block. For example, \fn and \qmlsignal in a single comment block
is not allowed. Such instances must be documented in separate
comment blocks.

Change-Id: I65f4518499e2600c4e1807356d4116c575e48c19
Reviewed-by: Andy Nichols <andy.nichols@digia.com>
Reviewed-by: Jerome Pasion <jerome.pasion@digia.com>