Send full commit description on individual commit retrieval

Changes to be committed:
	modified:   git-client/src/main/java/nl/tudelft/ewi/git/client/Repositories.java
	modified:   git-client/src/main/java/nl/tudelft/ewi/git/client/RepositoriesImpl.java
	modified:   git-client/src/test/java/nl/tudelft/ewi/git/client/RepositoriesMock.java
	modified:   git-client/src/test/java/nl/tudelft/ewi/git/models/MockedRepositoryModel.java
	modified:   git-models/src/main/java/nl/tudelft/ewi/git/models/BaseModel.java
	modified:   git-models/src/main/java/nl/tudelft/ewi/git/models/BranchModel.java
	modified:   git-models/src/main/java/nl/tudelft/ewi/git/models/CommitModel.java
	modified:   git-models/src/main/java/nl/tudelft/ewi/git/models/DetailedBranchModel.java
	new file:   git-models/src/main/java/nl/tudelft/ewi/git/models/DetailedCommitModel.java
	modified:   git-models/src/main/java/nl/tudelft/ewi/git/models/DiffModel.java
	modified:   git-server/src/main/java/nl/tudelft/ewi/git/inspector/Inspector.java
	modified:   git-server/src/main/java/nl/tudelft/ewi/git/web/RepositoriesApi.java