Fix sizes of internal controls of AcquireImageControl

A Mono layout bug truncates the size of controls anchored right and
left inside AcquireImageControl.  This provides a workaround to fix
https://jira.sil.org/browse/BL-778 "[Linux] Image Toolbox only
displays 2 columns of AoR images (Windows does 3)".  The bug would
probably affect WeSay as well as Bloom.
Merge pull request #155 from sillsdev/Fix-BL-778

Fix sizes of internal controls of AcquireImageControl
Add SIL.ScriptureControls
Merge pull request #157 from andrew-polk/SIL.ScriptureControls

Add SIL.ScriptureControls
Improve NUnit task

- Add support for Apartment parameter
- Add new property Verbose that immediately prints output of NUnit
  instead of after NUnit exited

Change-Id: I51bd823bd7b58e9218c16e2c57735decc73e6112
Don't wait forever for disk device number [Linux]

On Linux, determining on which device a file or directory exists
requires either a low-level system call that is too hard to access
from C# (try it if you don't believe me) or running an external
program to get the information.  The latter process is frequently
hanging for some reason even after the program has finished giving
the desired information.  See https://jira.sil.org/browse/BL-771
for a bug report on this behavior.
Merge pull request #158 from sillsdev/Fix-BL-771

Don't wait forever for disk device number [Linux]
Merge pull request #156 from ermshiperete/ImproveNUnitTask

Improve NUnit task