Port number parameter now passed to DBI as integer.
Merge pull request #432 from maciekKolbusz/master

Port number parameter now passed to DBI as integer.
inf is null in json :-(
Merge branch 'master' of github.com:oetiker/rrdtool-1.x
add libdbi
fix extra linebreak
add lua and tcl to travis environment
more travis changes ... trying to get it to build lua bindings too
fix pod syntax
Bug #431: Fix signal handler

The signal handler implementation called async-signal-unsafe functions.
Corresponding notifications are handled by the interface "sigwaitinfo"
in a separate thread now.

Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>
Merge pull request #434 from elfring/signal_handler_correction

Bug #431: Fix signal handler
Bug #429: Clean-up of reserved identifier violations

Some identifiers did not fit to the expected naming convention of the
C language standard. This detail was fixed by the deletion of leading underscores.
The probability for name clashes was reduced for the affected include guards
by the addition of a kind of universally unique identifier as a suffix.

Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>
Bug #429: Clean-up of reserved identifier violations

A few identifiers did not fit to the expected naming convention of the
C++ language standard. This detail was fixed by the deletion of an underscore.
The probability for name clashes was reduced for the affected include guards
by the addition of a kind of universally unique identifier as a suffix.

Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>
Merge pull request #435 from elfring/reserved_identifier_violation_clean-up

Bug #429: Clean-up of reserved identifier violations
Add --left-axis-format option to control labels on y-axis of graph.

Conflicts:

	src/rrd_graph.c