#130 - minor UI bug fixes

Fixed following things.

1. Add Resources/Add user drop-down, button was floating to next line. (screenshot is from Agent page)
![screen shot 2014-09-15 at 4 01 49 pm](https://cloud.githubusercontent.com/assets/3040988/4269980/8a75ef98-3cc3-11e4-9298-f21329946812.png)

2. Custom checkboxes' bottom-border was not visible. (check above image)

3. Hovering over buttons[only few] were changing their height. (screenshot is from Compare dialog)
![screen shot 2014-09-15 at 4 04 06 pm](https://cloud.githubusercontent.com/assets/3040988/4270002/d7fc0ea0-3cc3-11e4-8e17-9b40c95ef454.png)

4. `[server]/admin/pipelines/[pipeline_name]/general` Fixed background color of page and alignments.

5. Help question mark was not rendering properly. (screenshot is from Admin/Pipelines page)
![screen shot 2014-09-15 at 4 08 05 pm](https://cloud.githubusercontent.com/assets/3040988/4270031/68314f12-3cc4-11e4-99a4-9997adbd5efa.png)