gem release: 0.2.7

Signed-off-by: Anurag Priyam <anurag.priyam@qmul.ac.uk>

0.2.6

Signed-off-by: Anurag Priyam <anurag08priyam@gmail.com>

0.2.5

Signed-off-by: Anurag Priyam <anurag08priyam@gmail.com>

v0.2.4

Signed-off-by: Anurag Priyam <anurag08priyam@gmail.com>

v0.2.3

Signed-off-by: Anurag Priyam <anurag08priyam@gmail.com>

v0.2.2

Signed-off-by: Anurag Priyam <anurag08priyam@gmail.com>

v0.2.1

Signed-off-by: Anurag Priyam <anurag08priyam@gmail.com>

v0.2.0

Declare 2.0 as the minimum Ruby version for the gem.

Signed-off-by: Anurag Priyam <anurag08priyam@gmail.com>

Update README for gem release.

One-two other updates concerning change of approach.

Signed-off-by: Anurag Priyam <anurag08priyam@gmail.com>