Increment library version to 0.7.7

[ekigamba]

• Increment library version
• Enable kujaku library release imports on the sample module

[coveralls]

Pull Request Test Coverage Report for Build 1482

• 0 of 0 changed or added relevant lines in 0 files are covered.
• 22 unchanged lines in 2 files lost coverage.
• Overall coverage decreased (-2.8%) to 49.193%

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Files with Coverage Reduction	New Missed Lines	%
library/src/main/java/io/ona/kujaku/KujakuLibrary.java	10	0.0%
library/src/main/java/io/ona/kujaku/domain/Point.java	12	0.0%
<!--	Total:	22		-->

Totals
Change from base Build 1479:	-2.8%
Covered Lines:	2407
Relevant Lines:	4893

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💛 - Coveralls