Merge pull request #17 from igor-borisov/develop

VAADINPNL-55 add liferay-display.xml
VAADINPNL-57 fixed (change version to 7.1.* and nightly versions fixed)
Merge pull request #18 from maxim-minin/master

change version to 7.1.* and compile widgetset issue fixed
remove whitespace chars from portlet name
do not print FileNotFoundException info to the log when vaadin 7 not installed
do not print FileNotFoundException info to the log when vaadin 7 not installed
Merge pull request #19 from maxim-minin/master

remove warnings from log
Update README.md
Fix compiling with Java 6. Integer.compare(int,int) is since Java 7.
Missed the Integer.valueOf() for the "y" param
Merge pull request #20 from ljani/java6-compat

Fix compiling with Java 6. Integer.compare(int,int) is since Java 7.
Fixed the app to work with Liferay 6.2 and Vaadin 7.1.8
Fixed MANIFEST.MF
Merge pull request #22 from pmatti/master

Fixes to make the plugin work with Vaadin 7.1.8 and Liferay 6.2.0-GA1
Update README.md

Fix installation list layout.
Unify title styles.
Merge pull request #23 from cheets/patch-1

Update README.md
Update liferay-portlet.xml

Changed control-panel-entry-category to configuration
Merge pull request #25 from pmatti/master

Update liferay-portlet.xml
fix for vaadin versions 7.1.x, 7.2.x, 7.3.x
fix for vaadin versions 6.x.x