unify TinkerPop spell

[zhoney]

Change-Id: I11475257970b0cb845f3b0bb9621e4901ccf8c6d

[codecov]

Codecov Report

Merging #1252 (56dc2e8) into master (2f6147f) will increase coverage by 0.74%.
The diff coverage is 57.14%.

@@             Coverage Diff              @@
##             master    #1252      +/-   ##
============================================
+ Coverage     61.66%   62.41%   +0.74%     
- Complexity     5715     5758      +43     
============================================
  Files           374      374              
  Lines         31291    31291              
  Branches       4395     4395              
============================================
+ Hits          19297    19529     +232     
+ Misses        10014     9780     -234     
- Partials       1980     1982       +2     

Impacted Files	Coverage Δ	Complexity Δ
...com/baidu/hugegraph/auth/HugeFactoryAuthProxy.java	0.00% <0.00%> (ø)	0.00 <0.00> (ø)
...in/java/com/baidu/hugegraph/StandardHugeGraph.java	79.32% <80.00%> (ø)	118.00 <1.00> (ø)
...va/com/baidu/hugegraph/backend/cache/RamCache.java	71.83% <0.00%> (-0.58%)	27.00% <0.00%> (-1.00%)
...du/hugegraph/backend/tx/GraphIndexTransaction.java	81.20% <0.00%> (-0.12%)	203.00% <0.00%> (ø%)
...aidu/hugegraph/backend/store/mysql/MysqlTable.java	81.54% <0.00%> (+0.55%)	96.00% <0.00%> (+1.00%)
...a/com/baidu/hugegraph/backend/query/Condition.java	79.12% <0.00%> (+0.73%)	32.00% <0.00%> (ø%)
...aidu/hugegraph/backend/tx/AbstractTransaction.java	73.24% <0.00%> (+1.91%)	53.00% <0.00%> (+1.00%)
...u/hugegraph/backend/store/mysql/MysqlSessions.java	68.49% <0.00%> (+2.73%)	27.00% <0.00%> (ø%)
...aidu/hugegraph/backend/store/mysql/MysqlStore.java	81.72% <0.00%> (+3.04%)	45.00% <0.00%> (+3.00%)
...h/backend/store/postgresql/PostgresqlSessions.java	76.92% <0.00%> (+76.92%)	9.00% <0.00%> (+9.00%)
... and 5 more

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