Travis Builds fail due to log length exceeded error

[landonreed]

It appears that the Travis CI builds for this project are failing due to:

The job exceeded the maximum log length, and has been terminated.

Some discussion of this on the web pointed me to increasing the timeout for maven package:

install: travis_wait 30 mvn install

It's not entirely clear why this started happening now though.

EDIT 1: After taking a closer look, it appears that a NumberFormatException is being thrown continually by gtfs-lib during the canMergeRegional test (around log line 53000, where the job errors). The travis docs mention an exception being thrown continually as a likely cause for this log length issue, so this might actually be the culprit.

EDIT 2: As a counterpoint, these exceptions aren't reached in https://travis-ci.org/github/ibi-group/datatools-server/builds/731588992, but the job still errors at log line 8834.

[landonreed]

Fixed as part of #340