Added ability to get other user's groups

Support for listing more than 20 project members

Adding a default branch argument to the updateProject method.

The default branch controls which branch is displayed when a
user navigates to a project in Gitlab.  Typically Gitlab will
default to the first branch that is pushed to the repository.
In cases where automation is used to create other branches
prior to creating the master or development branches, it may
be necessary to use this "default_branch" field to specify
the default branch that should be displayed to users.

Code coverage should be Floats

Added a null check to GitlabGroup#setLdapAccess. 

Added a null check to GitlabGroup#setLdapAccess. This resolves a NullPointerException that was encountered when unmarshalling a a GitlabGroup JSON object with a null ldap_access attribute.

Added ability to get single build

Check to see if a group has ldap_access as null

Added ability to compare commits

Added ability to call getRawFileContent without making a project object

Added getBuildsArtifact method

I ran into an odd issue where the download files were 10MB too big
and were in an invalid .tgz format, but reading the byte stream
from the actual input stream instead of the reader fixed the issue.

[Enhancement] Add IDE plugins to build file

implements api for get tags, add tag and delete tag 

sanitize branches before calling api.

was having problem with a character '#' in a branch name

Added builds API for projects and commits

Added createBranch API methods