fix deploy.sh
fix OrWebTask
rename package 'pages' to 'ui'
rename Page to WebPage

for coherence with WebElement, WebDriver
rename User to WebUser

for coherence with WebElement, WebDriver
update BaseWebTask

add convenience methods for retrieving the underlying Browser and WebDriver
add ManualNavigationWebTask
tiny fixes (javadocs, mainly)
update pom: add hamcrest as dependency
add task sleepFor

also, introduce WebTasks, static class with factory methods
for building instances of WebTask
simplifying the design of BDD tasks

no concrete classes; just factory methods returning CompositeWebTask
improve sample, pages: spread responsibilities among many page components
bump version to 0.3