#134 List Occurrence

1. Added List Occurrence to the Menu
2. Added ListOccurrenceController
3. Added Views to list all occurrences and show the datail of one occurrence
4. Change the maven-resources-plugin from version 2.3 to 2.4, it solves the problem acessing the internationalization on the .properties
Correction of dateOfOppening spelling

1. Correction on Occurence field, dateOfOppening to dateOfOpening
2. Added changelog to correct the field in the database table
Boolean labels - issue #132
Merge pull request #136 from diogodias86/master

Boolean labels - issue #132
Merge pull request #135 from efraimgentil/master

#134 List Occurrence
Everything is allright. Thanks @efraimgentil