Solve compilation failure due to javadoc on jdk1.8
Solve compilation failure due to javadoc on jdk1.8

Add -Xdoclint to avoid compilation failure due to javadoc on java 1.8. See http://blog.joda.org/2014/02/turning-off-doclint-in-jdk-8-javadoc.html for more details.
An important amount of errors comes from :
liquibase-master/liquibase-core/src/main/java/liquibase/util/file/FilenameUtils.java
balazs-zsoldos/liquibase,lazaronixon/liquibase,OpenCST/liquibase,syncron/liquibase,Datical/liquibase,mbreslow/liquibase,mbreslow/liquibase,vfpfafrf/liquibase,foxel/liquibase,NSIT/liquibase,FreshGrade/liquibase,fbiville/liquibase,dyk/liquibase,adriens/liquibase,talklittle/liquibase,Willem1987/liquibase,dyk/liquibase,vast-engineering/liquibase,maberle/liquibase,dbmanul/dbmanul,dbmanul/dbmanul,gquintana/liquibase,CoderPaulK/liquibase,maberle/liquibase,klopfdreh/liquibase,vbekiaris/liquibase,russ-p/liquibase,mortegac/liquibase,EVODelavega/liquibase,syncron/liquibase,OpenCST/liquibase,C0mmi3/liquibase,danielkec/liquibase,mortegac/liquibase,adriens/liquibase,vbekiaris/liquibase,mwaylabs/liquibase,maberle/liquibase,dprguard2000/liquibase,instantdelay/liquibase,mwaylabs/liquibase,mattbertolini/liquibase,gquintana/liquibase,vbekiaris/liquibase,tjardo83/liquibase,lazaronixon/liquibase,dprguard2000/liquibase,klopfdreh/liquibase,evigeant/liquibase,mattbertolini/liquibase,dbmanul/dbmanul,evigeant/liquibase,talklittle/liquibase,cleiter/liquibase,pellcorp/liquibase,mortegac/liquibase,klopfdreh/liquibase,dprguard2000/liquibase,adriens/liquibase,mbreslow/liquibase,balazs-zsoldos/liquibase,fossamagna/liquibase,EVODelavega/liquibase,CoderPaulK/liquibase,talklittle/liquibase,mortegac/liquibase,dyk/liquibase,FreshGrade/liquibase,danielkec/liquibase,fbiville/liquibase,jimmycd/liquibase,Datical/liquibase,OpenCST/liquibase,maberle/liquibase,fossamagna/liquibase,Willem1987/liquibase,vast-engineering/liquibase,hbogaards/liquibase,liquibase/liquibase,tjardo83/liquibase,evigeant/liquibase,foxel/liquibase,fossamagna/liquibase,danielkec/liquibase,dbmanul/dbmanul,mwaylabs/liquibase,ivaylo5ev/liquibase,hbogaards/liquibase,balazs-zsoldos/liquibase,vbekiaris/liquibase,pellcorp/liquibase,instantdelay/liquibase,FreshGrade/liquibase,FreshGrade/liquibase,dyk/liquibase,ivaylo5ev/liquibase,cleiter/liquibase,jimmycd/liquibase,vast-engineering/liquibase,Datical/liquibase,fbiville/liquibase,mbreslow/liquibase,foxel/liquibase,Willem1987/liquibase,cleiter/liquibase,evigeant/liquibase,liquibase/liquibase,lazaronixon/liquibase,lazaronixon/liquibase,gquintana/liquibase,mattbertolini/liquibase,instantdelay/liquibase,vfpfafrf/liquibase,NSIT/liquibase,C0mmi3/liquibase,jimmycd/liquibase,vast-engineering/liquibase,mwaylabs/liquibase,pellcorp/liquibase,russ-p/liquibase,vfpfafrf/liquibase,danielkec/liquibase,mattbertolini/liquibase,russ-p/liquibase,Willem1987/liquibase,CoderPaulK/liquibase,hbogaards/liquibase,fbiville/liquibase,hbogaards/liquibase,dprguard2000/liquibase,instantdelay/liquibase,foxel/liquibase,C0mmi3/liquibase,vfpfafrf/liquibase,pellcorp/liquibase,gquintana/liquibase,C0mmi3/liquibase,talklittle/liquibase,cleiter/liquibase,Datical/liquibase,liquibase/liquibase,EVODelavega/liquibase,russ-p/liquibase,CoderPaulK/liquibase,iherasymenko/liquibase,iherasymenko/liquibase,NSIT/liquibase,syncron/liquibase,iherasymenko/liquibase,syncron/liquibase,jimmycd/liquibase,NSIT/liquibase,balazs-zsoldos/liquibase,OpenCST/liquibase,tjardo83/liquibase,EVODelavega/liquibase,klopfdreh/liquibase,tjardo83/liquibase,iherasymenko/liquibase