upgrade Bundler on Travis for Danger bot

[masters3d]

closes #138

Future solution. rubygems/bundler#5010

[pacman-bot]

	41 Messages
📖	** TEST SUCCEEDED: 314 passed, 0 failed, 0 errored, 314 total ** (24656 ms)
📖	exercises/allergies/AllergiesExample.m#L23 - bitwise operator in conditional
📖	exercises/allergies/AllergiesExample.m#L25 - unnecessary else statement
📖	exercises/allergies/AllergiesTest.m#L19 - high cyclomatic complexity
📖	exercises/allergies/AllergiesTest.m#L26 - high cyclomatic complexity
📖	exercises/allergies/AllergiesTest.m#L33 - high cyclomatic complexity
📖	exercises/allergies/AllergiesTest.m#L40 - high cyclomatic complexity
📖	exercises/clock/ClockExample.m#L27 - ivar assignment outside accessors or init
📖	exercises/clock/ClockExample.m#L28 - ivar assignment outside accessors or init
📖	exercises/clock/ClockExample.m#L32 - ivar assignment outside accessors or init
📖	exercises/clock/ClockExample.m#L33 - ivar assignment outside accessors or init
📖	exercises/clock/ClockExample.m#L37 - ivar assignment outside accessors or init
📖	exercises/clock/ClockExample.m#L41 - ivar assignment outside accessors or init
📖	exercises/clock/ClockTest.m#L13 - too many methods
📖	exercises/gigasecond/GigasecondTest.m#L19 - ivar assignment outside accessors or init
📖	exercises/hello-world/HelloWorldExample.m#L7 - parameter reassignment
📖	exercises/largest-series-product/LargestSeriesProductExample.m#L8 - prefer early exits and continue
📖	exercises/largest-series-product/LargestSeriesProductTest.m#L49 - long line
📖	exercises/meetup/MeetupExample.m#L17 - high ncss method
📖	exercises/meetup/MeetupExample.m#L22 - unnecessary default statement in covered switch statement
📖	exercises/secret-handshake/SecretHandshakeExample.m#L16 - bitwise operator in conditional
📖	exercises/secret-handshake/SecretHandshakeExample.m#L20 - bitwise operator in conditional
📖	exercises/secret-handshake/SecretHandshakeExample.m#L24 - bitwise operator in conditional
📖	exercises/secret-handshake/SecretHandshakeExample.m#L28 - bitwise operator in conditional
📖	exercises/secret-handshake/SecretHandshakeExample.m#L32 - bitwise operator in conditional
📖	exercises/secret-handshake/SecretHandshakeExample.m#L34 - unnecessary else statement
📖	exercises/space-age/SpaceAgeTest.m#L24 - high cyclomatic complexity
📖	exercises/space-age/SpaceAgeTest.m#L29 - high cyclomatic complexity
📖	exercises/space-age/SpaceAgeTest.m#L35 - high cyclomatic complexity
📖	exercises/space-age/SpaceAgeTest.m#L41 - high cyclomatic complexity
📖	exercises/space-age/SpaceAgeTest.m#L47 - high cyclomatic complexity
📖	exercises/space-age/SpaceAgeTest.m#L53 - high cyclomatic complexity
📖	exercises/space-age/SpaceAgeTest.m#L59 - high cyclomatic complexity
📖	exercises/space-age/SpaceAgeTest.m#L65 - high cyclomatic complexity
📖	exercises/sum-of-multiples/SumOfMultiplesExample.m#L13 - short variable name
📖	exercises/transpose/TransposeTest.m#L73 - long method
📖	exercises/triangle/TriangleExample.m#L5 - short variable name
📖	exercises/triangle/TriangleExample.m#L5 - high cyclomatic complexity
📖	exercises/triangle/TriangleExample.m#L5 - short variable name
📖	exercises/triangle/TriangleExample.m#L5 - short variable name
📖	exercises/triangle/TriangleExample.m#L16 - unnecessary else statement

Generated by 🚫 danger