Bump version to 1.0.2

[filippsen]

Description of the Change

Bump to new version containing various bug fixes and improvements:

• Fix: list changes in CHANGELOG file Update CHANGELOG #178
• Improvement: limit left side panel width when resizing Set left bar max size #170
• Fix: rendering glitch in Help/General menu Fix rendering glitch in Help/General when the first item is selected (#138)  #182
• Fix: items alignment in Files hierarchy Control - Fixed icons alignment for the control items #187
• Improvement: reference tests covering base compile functionality Add initial compile tests #176
• Improvement: update Solidity compiler to version 0.4.25 Update Solidity compiler #180
• Fix: continuous integration base environment to use Node version 8.12 Update Circle CI configuration to fix constraints #190
• Improvement: increase maximum file name length to 255 characters Contract file name length validation exceeded #183