fix two failing tests (#12964)

revert the original value to not disturb other tests:
the test change the property to "Jimmy" but other tests expect "Jim" (that is the original value)
(but we should not trust the value, and each test should check/set the value)

In locales other than the English one, the decimal separator may be not a dot

Change-Id: Ia8a509fca593ace1959d2d76b4115cc01c7b8b9e
Update instructions as Svn is no longer used

Change-Id: Icd46cca38e6c79ea96b62d6d508f074ccab7f9f3
fix HibernateLazyLoadingDelegate

Change-Id: I11401503f3d76344fe40b2f353c2cc195ebe5ca6
minor fixes

Change-Id: I355f022096756f33034f92bd75dbbd4cfa20bde3
Merge remote-tracking branch 'github-vaadin/master' into custom

Conflicts:
	jpacontainer-addon/src/test/java/com/vaadin/addon/jpacontainer/JPAContainerItemHibernateLazyLoadingTest.java
	jpacontainer-addon/src/test/java/com/vaadin/addon/jpacontainer/JPAContainerItemTest.java

Change-Id: If12908831161d38d344caa2e80dd3fe6a14819de