Use placeholder instead of text

This makes editing easier and is more consistent with boostrap's samples
Merge pull request #39 from LeovR/patch-1

Use placeholder instead of text
Adding method to toggle the caret for Buttons. Fixed #190.
Add examples of usage fixedWidth on Icons

- Update version to 0.9-SNAPSHOT for new development cycle.
- Changed setSubtext() -> setSubText() on TypographyView to reflect
  this change of Heading widget in GwtBootstrap3 (0.8.1 and 0.9-SNAPSHOT).
- Added examples of usage fixedWidth on Icons to IconView and NavView.
Merge pull request #40 from zlamalp/fixedWidth

Add examples of usage fixedWidth on Icons
Added documentation for Animate extra module.
Merge pull request #42 from zlamalp/animate

Added documentation for Animate extra module.
Updated documentation of Animate module.
Merge pull request #43 from zlamalp/animate

Updated documentation of Animate module.
Fixed issue #41 "Signed in asJohn Snow".
Merge pull request #44 from zlamalp/snow

Fixed issue #41 "Signed in asJohn Snow".