Update dependencies and version

JavaMail: 1.5.0 or later -> 1.5.2 (exact)
Weld SE: 2.1.1.Final -> 2.2.4.Final
version: 0.8 -> 0.8.1-SNAPSHOT
modify .gitignore

add entry "/.settings" that is settings of Eclipse to .gitignore file.
Merge pull request #6 from btnrouge/master

patches for issue #4 and #5