Follow NetBeans 8.0 changes #52

- Change PhpModule to PhpModule.Factory
Fix warnings
Fix hints
Follow NetBeans 8.0 changes #52

- Move Options to Frameworks & Tools tab
Fix  wrong way to get PhpModuleProperties
Minor improvement for CustomizerPanel
Add validation to customizer panel #50
Improvement for autodetection #53
Update version number to 0.8.0
Fix code completion problem #56

- Code completion for file path doesn't work (e.g. render method)
Update version number to 0.8.1
Merge branch 'nb80dev'