[FIX] Fix spelling mistakes in the documentation

Several spelling mistakes are fixed and the documents are unified to
American English.

Change-Id: I79a2d61e9c7fe40d5407c9bca27e520679c64568
Reviewed-on: http://brateggevoat1/gerrit/2360
Reviewed-by: Wolfgang Seiss <wolfgang.seiss@br-automation.com>
Tested-by: Jenkins <jenkins@brateggevoat1.br-automation.co.at>
Reviewed-by: Josef Baumgartner <josef.baumgartner@br-automation.com>
[FIX] Show support of ext. NMT commands in the feature flags of the XDDs

* This applies only to XDDs that are used for openPOWERLINK-based devices.

Change-Id: Ic77c68092b554897656ffee349ac696821569c96
Signed-off-by: Wolfgang Seiss <wolfgang.seiss@br-automation.com>
Reviewed-on: http://brateggevoat1/gerrit/2349
Tested-by: Jenkins <jenkins@brateggevoat1.br-automation.co.at>
Reviewed-by: Joerg Zelenka <joerg.zelenka@br-automation.com>
Reviewed-by: Josef Baumgartner <josef.baumgartner@br-automation.com>
[FIX] Fix spelling mistake of SDO sent frame state

Change-Id: Ia8d42b55a839bcf8c0a1df323253aefd9902074c
Reviewed-on: http://brateggevoat1/gerrit/2359
Tested-by: Jenkins <jenkins@brateggevoat1.br-automation.co.at>
Reviewed-by: Joerg Zelenka <joerg.zelenka@br-automation.com>
Reviewed-by: Wolfgang Seiss <wolfgang.seiss@br-automation.com>
Reviewed-by: Josef Baumgartner <josef.baumgartner@br-automation.com>
[FIX] Fix CN extended NMT command handling

This fix ensures that the CN reacts to the extended NMT command if the
node's corresponding bit is set.
- Use bit mask instead of bit offset with logic AND
- Prepare offset and mask in nmtcnu_addInstance

Resolves: #772

Change-Id: I40e2ce9ee6cfc2d536ece8e3c2fa8982f47c8b3f
Reviewed-on: http://brateggevoat1/gerrit/2356
Tested-by: Jenkins <jenkins@brateggevoat1.br-automation.co.at>
Reviewed-by: Joerg Zelenka <joerg.zelenka@br-automation.com>
Reviewed-by: Josef Baumgartner <josef.baumgartner@br-automation.com>
Reviewed-by: Wolfgang Seiss <wolfgang.seiss@br-automation.com>