fix #281 Possibility to override html:TextInput cfg beans

PR #282
fix #286 improve ScriptLoader doc
doc Fixed HTML in getData JSdoc
feat #284 Addition of a comparison method for dates
fix #278 path to skin images computed with aria.core.DownloadMgr.resolveURL
fix #289 Simple "for" usage instead of "for..in"
fix #223 multiselect widget changes for maxoptions
fix #142 height and width attributes

height and width style attribute in html templates
fix#279 button spacing issue in browsers other than firefox
fix #295 attributes different from null and undefined are properly stringified
feat #288 placeholder feature for HTML Text Input
feat #268 Fix for test.aria.html.ElementTest
fix #142 height and width attributes
fix #288 placeholder and bindings

When the placeholder was not set, bindings were broken.
Also, when setting the bound value to null, the placeholder was not being displayed.
fix #288 placeholder not removed correctly after data model changes
1.3.3