Log Message:
tex-beamer: update to 3.63

3.63
### Changed
- adding `lastsection` option to toc

### Fixed
- Removed superflous period in combination with the `firstsection` option
- Behaviour of `\label` in article mode
- Problem with date position in infolines theme

3.62
### Fixed
- Issue with naming of file hooks
- fixed problem with `\insertmainframenumber` in combination with
`ignorenonframetext`