remove readout of colorbar's xaxis options
remove dead code

it is already present in function `getAxisOptions`
Revert "remove readout of colorbar's xaxis options"

This reverts commit 448b804dc642b977474e2ef5f5ce438187fd56e1.
Annotation: Rectangles
Add new testcase for colorbar

R2014b handles colorbars smart:  `XLabel` and `YLabel` merged into `Label`
Use colormap 'jet' to create comparable output with MATLAB R2014b
* Check horizontal/vertical colorbar (subplots)
* Check if 'direction' is respected
* Check if multiline label and title works
* Check if latex interpreter works in label and title
add function `isHG2` that returns graphic system
fix multiline colorbar title
Handle colorbar differently in HG2 graphics system

MATLAB R2014b introduced an new graphics system. It is object oriented and changed some behavior. For example colorbars are now not treated as axes objects any longer.

For exmpale, now there is only one 'label' for the whole colorbar and one 'direction' setting.
add TODOs
use old syntax
check for existence of flip()
rename inputParser to m2tInputParser for brevity
isstr -> ischar
workaround Octave colorbar find "bug"
Revert "check for existence of flip()"

This reverts commit 4f8f3810808ce5a107d29a376768cad90a1361aa.
fix ACID test for GNU Octave

tested with Octave 3.8.2 and R2014b
Merge pull request #465 from PeterPablo/fix_ACID_multiline_labels

Fix acid multiline labels
'stack' -> 'stacked' for Octave compatibility
remove copyright and version-specific information from output

The value gained from adding version information was little, and making the
output persistent across different versions allows proper automated testing.
fix issue in findLegendInformation with `addaxes`

consider this example:
```
data = magic(3); h(1) = plot(data(1,:),'r-'); hold on; h(2) = plot(data(2,:),'k--'); legend('plot1','plot2');  % add additional x-axis with nonlinear scaling xFun = @(x) x.^2; addaxes('XFun',xFun);
```

m2t has an issue in function `findLegendInformation` when adding an additional x-axis with nonlinear scaling using the FileExchange contribution `addaxes` (http://www.mathworks.com/matlabcentral/fileexchange/24875-addaxes-m-v1-1--sep-2009-).

For some reason `child` might be empty. This would cause an error during the comparison with `plotChildren`. The issue is circumvented by checking for empty children.