Bump version
Contribution type was not correctly selected on second step; fixes #618
SQL error trying to search on multiple choice dynamic fields; fixes #619
Check if language code exists when loading Texts; to avoid empty results; fixes #621
Do not store overlapping contributions; fixes #622
Merge branch 'hotfix/0.7.4.3'
Merge remote-tracking branch 'remotes/tuxfamily/master'