Release hugegraph-hubble 1.5.0

What's Changed

• Implement connection management, gremlin query, execute histroy and g… by @Linary in #3
• Add travis python test by @Linary in #111
• Support schema management by @Linary in #42
• Refactor conn id in url by @Linary in #113
• Add limit for graph connections and data size by @Linary in #217
• Shielding the risks of SQL injection by @Linary in #220
• Merge HugeGraph-Hubble-fe v1.2.0 by @OshotOkill in #218
• Add white list for graph connection ip and port by @Linary in #221
• Enhance schema style setting by @Linary in #219
• Support front end and backend package together by @Linary in #225
• HugeGraph-Hubble-fe v1.2.1 by @OshotOkill in #224
• Upgrade client and common version by @Linary in #228
• Add data import and dynamic handlings with graph by @OshotOkill in #229
• Support load data from disk file by @Linary in #109
• Merge v1.2.2 into branch by @OshotOkill in #233
• Force frontend code formats before git commits by @OshotOkill in #235
• Fix some tiny bugs by @Linary in #231
• Improve count lines in FileUtil by @Linary in #236
• Add client https method by @shzcore in #232
• Support data-import task manager by @OshotOkill in #239
• Add support for async tasks by @OshotOkill in #241
• Add support for algorithm analyzing by @OshotOkill in #242
• Fix some loader bug by @Linary in #243
• add asynchronous task management by @shzcore in #245
• Some bug fix for load task and schema manage by @Linary in #246
• Fix job manager update bug by @shzcore in #247
• Community edition enhancement and improvements by @OshotOkill in #248
• Regard permission denied as legal when create graph connection by @Linary in #251
• fix https connect bug by @shzcore in #255
• Fix https bug by @shzcore in #256
• Upgrade dependency version for release by @Linary in #250
• Fix clear username then update can't work by @Linary in #253
• Use default client truststore file and password by @Linary in #257
• add certificate loading failure error prompt by @shzcore in #258
• Add community version code to repo by @OshotOkill in #259
• Sync code editor changes by @OshotOkill in #278

Full Changelog: https://github.com/hugegraph/hugegraph-hubble/commits/v1.5.0